If you’re shopping for Halloween costumes around Amazon’s October event, these 30 options cover princess, mermaid, Minecraft, Disney, superhero, toddler, animal and adult inflatable styles. Amazon’s October shopping event is officially called Prime Big Deal Days and takes place October 6–7, 2026. Amazon says Halloween preparation is one of the seasonal shopping areas featured during the event. See Amazon’s official Prime Big Deal Days announcement.
These amazon october prime day deals 2026 picks include 30 Halloween costume listings. The prices shown below are reference prices from the product data used for this roundup, so check Amazon before buying because prices, discounts, sellers and availability can change.
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If you need Prime membership before shopping the event, see our Amazon Prime Free Trial 2026 guide for information about eligibility and promotional availability.
Which Halloween costume should you choose?
The best match depends on the wearer, character or costume theme, size and how many pieces you want included.
| If you want… | Consider… | Why |
|---|---|---|
| The most versatile princess set | LIMIROLER 18 Pcs Princess Dress Up Clothes | 18 pieces and five princess looks provide multiple outfit combinations. |
| A light-up princess costume | Fedio Princess Dress Up | The cape and headband have three light modes. |
| A mermaid accessory set | Meland Mermaid Dress | The 11-piece set includes a dress plus multiple accessories. |
| A men’s pirate outfit | QRT 9PCS Men’s Pirate Costume | Nine pieces cover the main outfit and pirate accessories. |
| A classic Minecraft character | Steve Classic Minecraft Costume | It combines a pixel-style tunic with a 3D cube mask. |
| A Minecraft creature | Ender Dragon Costume | The design includes wings, a tail, headpiece and jumpsuit. |
| A toddler character costume | Cookie Monster Extra Deluxe | The officially licensed costume uses plush components. |
| An adult inflatable costume | Lulu Home T-Rex | The 7.5-foot inflatable design creates a large dinosaur silhouette. |
| A funny adult costume | IRETG Inflatable Banana | The inflatable banana uses a built-in fan and lightweight polyester. |
30 Amazon October Prime Day Halloween costume picks
| Product | Best for | Key feature | Price shown | Buy |
|---|---|---|---|---|
| Fedio Princess Dress Up | Light-up princess play | Three light modes | $15.38 | Check Amazon |
| Meland Mermaid Dress | Mermaid role play | 11-piece set | $19.99 | Check Amazon |
| QRT Pirate Costume | Men’s pirate costumes | Nine-piece outfit | $37.79 | Check Amazon |
| LIMIROLER Princess Set | Best Overall | 18 pieces and five looks | $28.55 | Check Amazon |
| Cat Costume for Girls | 3D cat looks | 3D hood and detachable tail | $26.99 | Check Amazon |
| Lulu Home T-Rex Costume | Large adult novelty costumes | 7.5-foot inflatable design | $26.99 | Check Amazon |
| Steve Classic Minecraft Costume | Classic Minecraft fans | Pixel tunic and cube mask | $38.99 | Check Amazon |
| KMiKE Inflatable Shark Costume | Adult shark costumes | Oversized inflatable shark | $31.19 | Check Amazon |
| Inflatable Alien Costume | Full-body alien looks | Green inflatable design | $29.99 | Check Amazon |
| JOYLOKY Police Costume | Younger kids’ role play | 11-piece set | $23.48 | Check Amazon |
| Joycover Police Officer Costume | Detailed police role play | 11 pieces and accessories | $26.72 | Check Amazon |
| SEMETOR Peacock Costume | Ride-on novelty costumes | Inflatable peacock design | $25.97 | Check Amazon |
| RISFUNIA Black Cat Costume | Cat onesies | Zip-up onesie and 3D tail | $19.97 | Check Amazon |
| Cookie Monster Extra Deluxe | Sesame Street toddlers | Plush jumpsuit and headpiece | $46.99 | Check Amazon |
| Minecraft Ender Dragon Costume | Minecraft creature costumes | Wings and tail | $30.49 | Check Amazon |
| Princess Peach Adult Costume | Adult Nintendo cosplay | Dress, headband and gloves | $56.49 | Check Amazon |
| Rubies Triceratops Costume | Toddler dinosaur costumes | Jumpsuit and headpiece | $35.49 | Check Amazon |
| Rubies Shark Costume | Toddler shark costumes | Romper, fins and headpiece | $30.49 | Check Amazon |
| Elmo Extra Deluxe Plush Costume | Sesame Street character fans | Plush bodysuit and headpiece | $44.49 | Check Amazon |
| Kevin Minion Costume | Minions fans | Hooded jumpsuit | $24.99 | Check Amazon |
| Maleficent Toddler Costume | Disney villain costumes | Official Disney dress | $24.49 | Check Amazon |
| Rubies DC Comics Superheroes Set | Multi-hero role play | Batman, Superman and Robin pieces | $26.49 | Check Amazon |
| Cakey Cat Costume | Gabby’s Dollhouse fans | Pink satin dress and cat ears | $35.49 | Check Amazon |
| Ravenclaw Deluxe Robe | Harry Potter fans | Ravenclaw robe and hood | $38.44 | Check Amazon |
| Creeper Classic Minecraft Costume | Creeper fans | Dimensional tunic and mask | $31.49 | Check Amazon |
| Disney Princess Ariel Costume | Toddler mermaid fans | Glitter dress and character details | $29.49 | Check Amazon |
| Minecraft Nether Armor Outfit | Minecraft armor looks | Foam-padded jumpsuit | $52.49 | Check Amazon |
| Alex Classic Minecraft Costume | Alex fans | Dimensional tunic and mask | $33.49 | Check Amazon |
| Rubies Magical Mermaid Costume | Simple mermaid dresses | Mermaid dress design | $24.99 | Check Amazon |
| IRETG Inflatable Banana Costume | Adult novelty comedy | Built-in fan | $26.99 | Check Amazon |
What to check before buying an October Prime Day costume
Compare the costume by fit, completeness and construction before comparing the displayed price. Amazon’s Prime Big Deal Days runs October 6–7, 2026, and Amazon says Prime members need a membership to access the event’s deals. Amazon also says shoppers can check price history on product detail pages before buying. Read Amazon’s Prime Big Deal Days FAQ.
For children’s costumes, start with the listed age or size. The roundup includes versions for toddlers, ages 3–5, 5–6, 7–8 and 10–12, among others. A costume with many accessories is only useful if the selected version fits the intended wearer.
Next, check what is actually included. Some options are complete multi-piece role-play sets, while others concentrate on a dress, robe, jumpsuit or character piece. For example, the LIMIROLER set contains 18 pieces, while the Rubies DC Comics set does not include pants.
Adult inflatable costumes need another check: the inflation system and power source. The Lulu Home T-Rex includes a fan but does not include batteries, while the IRETG banana costume uses four AA batteries that are not included.
Finally, distinguish a displayed price from a confirmed Prime Big Deal Days discount. Amazon’s event pages confirm the event and seasonal Halloween category, but a product’s price can change before or during the event.
Kids’ princess, fantasy and animal costumes
1. Fedio Princess Dress Up for Girls — Best for a Light-Up Princess Look
Price shown for this roundup: $15.38. Check Amazon for the latest price.
Check the Fedio Princess Dress Up for Girls on Amazon
Buy it if you want a light-up unicorn princess look. Skip it if you need a conventional costume with a broader size range.
The Fedio set combines a pink unicorn princess cape and headband with three light modes. Its one-size format keeps the outfit simple while the lighting provides the main visual feature.
The measurable reason to choose it is the three-mode lighting combined with the princess theme. The main limitation is the one-size design.
Who should buy it
Choose it for children who want a princess costume with lights and a unicorn theme.
Who should skip it
Skip it when exact apparel sizing or a licensed character is more important.
| Pros | Cons |
|---|---|
| Three light modes; unicorn theme; cape and headband | One-size format |
The light-up cape and headband are the defining features of this costume.
Buy the Fedio Princess Dress Up for Girls on Amazon
2. Meland Mermaid Dress for Girls — Best for Mermaid Role Play
Price shown for this roundup: $19.99. Check Amazon for the latest price.
Check the Meland Mermaid Dress for Girls on Amazon
Buy it if you want an 11-piece mermaid set. Skip it if the child needs a different size than the listed 5–6 years.
The purple Meland costume includes a blouse, tail skirt, bag, wand, tiara, gloves, necklace, earrings and ring. That makes it a broader role-play set than a dress-only costume.
The 11-piece construction is the measurable reason to choose it. The listed 5–6-year version is the main sizing limitation.
Who should buy it
Choose it for a child in the listed size range who wants several mermaid accessories.
Who should skip it
Skip it if you need another size or a simpler outfit.
| Pros | Cons |
|---|---|
| 11 pieces; mermaid theme; multiple accessories | Listed version is 5–6 years |
The accessory count makes this more than a dress-only mermaid costume.
Buy the Meland Mermaid Dress for Girls on Amazon
3. LIMIROLER 18 Pcs Princess Dress Up Clothes — Best Overall
Price shown for this roundup: $28.55. Check Amazon for the latest price.
Check the LIMIROLER 18 Pcs Princess Set on Amazon
Buy it if variety is the priority and you want five princess looks in one set. Skip it if you need one specific licensed character.
The LIMIROLER set contains 18 pieces, including five princess looks, five tops, four skirts, hair hoops, crowns, earrings and a storage box.
The combination of 18 pieces and five looks gives this set the broadest outfit variety in the roundup. The trade-off is that it uses general princess themes rather than one licensed character.
Who should buy it
Choose it for children ages 3–8 who enjoy repeated princess role play.
Who should skip it
Skip it when the child specifically wants a movie or game character.
| Pros | Cons |
|---|---|
| 18 pieces; five looks; storage box | No single licensed character |
The five-look format gives this set its widest role-play range.
Buy the LIMIROLER 18 Pcs Princess Set on Amazon
4. Cat Costume for Girls — Best for a 3D Cat Look
Price shown for this roundup: $26.99. Check Amazon for the latest price.
Check the Cat Costume for Girls on Amazon
Buy it if you want a cat costume with a 3D hood and detachable tail. Skip it if the child needs another size.
The gray-and-pink costume uses a 3D cat hood, V-neck design and detachable fluffy tail. The listed version is S 5–6Y.
The hood-and-tail combination creates the main animal identity. The S 5–6Y size is the key limitation.
Who should buy it
Choose it for a child in the listed size range who wants a cat costume.
Who should skip it
Skip it when an older-child or adult size is required.
| Pros | Cons |
|---|---|
| 3D hood; detachable fluffy tail; cat styling | Listed version is S 5–6Y |
The 3D hood and detachable tail provide the costume’s main visual features.
Buy the Cat Costume for Girls on Amazon
5. RISFUNIA Black Cat Costume — Best for a Cat Onesie
Price shown for this roundup: $19.97. Check Amazon for the latest price.
Check the RISFUNIA Black Cat Costume on Amazon
Buy it if you want a zip-up cat onesie. Skip it if the child needs another size.
The black RISFUNIA costume uses a zip-up onesie with hood, ears, 3D tail, embroidered cat patterns and pink paw details. The listed version is S 5–6Y.
The all-in-one onesie format is its clearest practical feature. The listed size limits who can use this particular version.
Who should buy it
Choose it for children who prefer an animal onesie to a dress-style costume.
Who should skip it
Skip it if another size is required.
| Pros | Cons |
|---|---|
| Zip-up design; hood and ears; 3D tail | Listed version is S 5–6Y |
The onesie construction makes this a straightforward cat costume.
Buy the RISFUNIA Black Cat Costume on Amazon
6. Rubies Magical Mermaid Costume Dress — Best for a Simple Mermaid Dress
Price shown for this roundup: $24.99. Check Amazon for the latest price.
Check the Rubies Magical Mermaid Costume on Amazon
Buy it if you want a straightforward mermaid dress. Skip it if you need shoes included or a roomier apparel fit.
The Rubies costume is a mermaid dress in the listed Medium 8–10 version. Shoes are not included, and the listing notes that the costume runs smaller than standard apparel.
The simple dress construction keeps the outfit focused. The smaller-than-apparel sizing is the main limitation to consider.
Who should buy it
Choose it for girls who want a simple mermaid dress and already have suitable footwear.
Who should skip it
Skip it if shoes need to be included or a roomier fit is required.
| Pros | Cons |
|---|---|
| Simple mermaid dress; $24.99 reference price | Shoes not included; runs smaller than apparel |
The simple dress format is the main reason to consider this costume.
Buy the Rubies Magical Mermaid Costume on Amazon
Minecraft and licensed character costumes
7. Steve Classic Minecraft Costume — Best for Classic Minecraft Fans
Price shown for this roundup: $38.99. Check Amazon for the latest price.
Check the Steve Classic Minecraft Costume on Amazon
Buy it if the child wants Steve specifically. Skip it if they prefer Alex, Creeper or another Minecraft character.
The officially licensed costume uses a blue pixel-style tunic and 3D cube mask. The listed version is Medium 7–8.
The character-specific design is the main reason to choose it. The particular size and Steve-only theme are the limitations.
Who should buy it
Choose it for a Minecraft fan who specifically wants Steve.
Who should skip it
Skip it when another Minecraft character is preferred.
| Pros | Cons |
|---|---|
| Official Minecraft design; 3D cube mask | Listed version is Medium 7–8 |
The Steve character identity is the main reason to choose this costume.
Buy the Steve Classic Minecraft Costume on Amazon
8. Minecraft Ender Dragon Costume — Best for Minecraft Creature Fans
Price shown for this roundup: $30.49. Check Amazon for the latest price.
Check the Minecraft Ender Dragon Costume on Amazon
Buy it if the child wants a Minecraft creature with wings and a tail. Skip it if another Minecraft character is preferred.
The costume combines a headpiece, jumpsuit, wings and tail. The listed version is Classic 4–6.
The wings and tail distinguish it from player-character Minecraft costumes. The listed age version is the key fit limitation.
Who should buy it
Choose it for Minecraft fans who want a creature rather than Steve, Alex or Creeper.
Who should skip it
Skip it when the child wants a different Minecraft character.
| Pros | Cons |
|---|---|
| Wings; tail; Minecraft creature design | Listed version is Classic 4–6 |
The wings and tail give this costume its defining silhouette.
Buy the Minecraft Ender Dragon Costume on Amazon
9. Princess Peach Adult Costume — Best for Adult Nintendo Cosplay
Price shown for this roundup: $56.49. Check Amazon for the latest price.
Check the Princess Peach Adult Costume on Amazon
Buy it if you want an official Super Mario Princess Peach costume. Skip it if the listed S 4–6 size does not fit.
The costume includes a dress, headband and gloves and is designed as an official Super Mario Princess Peach outfit.
The official character identity makes it suitable for Nintendo-themed dress-up. The listed adult Small size is the main limitation.
Who should buy it
Choose it for adults who specifically want Princess Peach.
Who should skip it
Skip it when another size or a generic princess costume is required.
| Pros | Cons |
|---|---|
| Official Super Mario costume; dress, headband and gloves | Listed size is S 4–6 |
The official Princess Peach identity is the defining feature.
Buy the Princess Peach Adult Costume on Amazon
10. Kevin Minion Costume — Best for Minions Fans
Price shown for this roundup: $24.99. Check Amazon for the latest price.
Check the Kevin Minion Costume on Amazon
Buy it if the child wants Kevin specifically. Skip it if another Minion character is preferred.
The officially licensed costume uses a hooded jumpsuit with faux overalls, buttons and Gru embroidery. The listed version is Small 4–6.
The one-piece character construction keeps the outfit straightforward. The specific Kevin character and listed size limit its audience.
Who should buy it
Choose it for young Minions fans who want Kevin.
Who should skip it
Skip it when another Minion character is wanted.
| Pros | Cons |
|---|---|
| Officially licensed; hooded jumpsuit; faux overalls | Listed size is Small 4–6 |
The Kevin-specific character design is the key feature.
Buy the Kevin Minion Costume on Amazon
11. Maleficent Costume for Toddlers — Best for a Disney Villain Look
Price shown for this roundup: $24.49. Check Amazon for the latest price.
Check the Maleficent Toddler Costume on Amazon
Buy it if you want an official Disney Maleficent dress. Skip it if the child wants a conventional princess character.
The costume is an official Disney Maleficent dress in the listed 2T size.
The character choice differentiates it from princess-focused dresses. The toddler-specific size is the principal limitation.
Who should buy it
Choose it for toddlers who want a Disney villain character.
Who should skip it
Skip it when another character or larger size is needed.
| Pros | Cons |
|---|---|
| Official Disney design; detailed dress | Listed size is 2T |
The official Maleficent design is the main reason to choose it.
Buy the Maleficent Toddler Costume on Amazon
12. Cakey Cat Costume — Best for Gabby’s Dollhouse Fans
Price shown for this roundup: $35.49. Check Amazon for the latest price.
Check the Cakey Cat Costume on Amazon
Buy it if the child wants Cakey Cat. Skip it if another character or size is needed.
The official costume uses a pink satin dress with Cakey Cat artwork and cat ears. The listed version is toddler 2T.
The recognizable character styling makes it targeted to Gabby’s Dollhouse fans. Toddler sizing limits this particular version.
Who should buy it
Choose it for toddlers who specifically want Cakey Cat.
Who should skip it
Skip it when another character is preferred.
| Pros | Cons |
|---|---|
| Official character; pink satin dress; cat ears | Toddler 2T version |
The Cakey Cat styling is the defining feature.
Buy the Cakey Cat Costume on Amazon
13. Harry Potter Ravenclaw Robe — Best for Ravenclaw Fans
Price shown for this roundup: $38.44. Check Amazon for the latest price.
Check the Ravenclaw Deluxe Robe on Amazon
Buy it if the child wants Ravenclaw styling. Skip it if another Hogwarts house is preferred.
The deluxe robe includes a hood, shiny blue satin lining and Ravenclaw patch. The listed version is Medium 7–8.
The house-specific details make it more targeted than a generic wizard robe. The listed size and Ravenclaw-only design are the limitations.
Who should buy it
Choose it for Harry Potter fans who want Ravenclaw styling.
Who should skip it
Skip it if another Hogwarts house is preferred.
| Pros | Cons |
|---|---|
| Ravenclaw patch; hood; blue satin lining | Specific house; Medium 7–8 |
The Ravenclaw-specific details are the main reason to choose this robe.
Buy the Ravenclaw Deluxe Robe on Amazon
14. Creeper Classic Minecraft Costume — Best for Creeper Fans
Price shown for this roundup: $31.49. Check Amazon for the latest price.
Check the Creeper Classic Minecraft Costume on Amazon
Buy it if the child wants the classic Creeper appearance. Skip it if another Minecraft character is preferred.
The officially licensed costume uses a dimensional green tunic and mask. The listed version is Medium 7–8.
The classic Creeper design provides immediate character recognition. The particular character and size limit the audience.
Who should buy it
Choose it for children who specifically want to dress as a Creeper.
Who should skip it
Skip it when Steve, Alex or another Minecraft character is preferred.
| Pros | Cons |
|---|---|
| Officially licensed; dimensional tunic and mask | Listed version is Medium 7–8 |
The classic Creeper design is the main reason to choose this costume.
Buy the Creeper Classic Minecraft Costume on Amazon
15. Disney Princess Ariel Toddler Costume — Best for Toddler Mermaid Fans
Price shown for this roundup: $29.49. Check Amazon for the latest price.
Check the Disney Princess Ariel Costume on Amazon
Buy it if you want an official Ariel costume with glitter character styling. Skip it if the Medium 3T–4T version does not fit.
The costume uses glitter fabric and Ariel character details, including a cameo. The listed version is Medium 3T–4T.
The official character theme directly targets Little Mermaid fans. The toddler sizing is the main limitation.
Who should buy it
Choose it for toddlers who specifically want Ariel.
Who should skip it
Skip it when another size or character is needed.
| Pros | Cons |
|---|---|
| Official Ariel design; glitter fabric; character cameo | Medium 3T–4T version |
The Ariel character design is the key feature.
Buy the Disney Princess Ariel Costume on Amazon
16. Minecraft Nether Armor Outfit — Best for Minecraft Armor Looks
Price shown for this roundup: $52.49. Check Amazon for the latest price.
Check the Minecraft Nether Armor Outfit on Amazon
Buy it if the child wants a more structured Minecraft armor appearance. Skip it if the displayed price is outside the budget.
The official outfit uses a jumpsuit, headpiece and foam padding. The listed version is Medium 7–8.
The foam padding gives it a more structured armor-style appearance than a basic tunic. Its $52.49 reference price is also one of the higher prices in this roundup.
Who should buy it
Choose it for Minecraft fans who want an armor-focused costume.
Who should skip it
Skip it when a simpler or lower-priced Minecraft costume is preferred.
| Pros | Cons |
|---|---|
| Official Minecraft design; foam padding; headpiece | $52.49 reference price; Medium 7–8 |
The padded construction is the main feature separating it from basic Minecraft costumes.
Buy the Minecraft Nether Armor Outfit on Amazon
17. Alex Classic Minecraft Costume — Best for Alex Fans
Price shown for this roundup: $33.49. Check Amazon for the latest price.
Check the Alex Classic Minecraft Costume on Amazon
Buy it if the child wants Alex in the listed 10–12 size. Skip it if Steve, Creeper or another character is preferred.
The officially licensed Alex costume uses a dimensional tunic and mask. The listed version is Large 10–12.
The specific Alex identity makes the costume suitable for fans who already know which Minecraft character they want. The listed size is the main limitation.
Who should buy it
Choose it for Minecraft fans who want Alex specifically.
Who should skip it
Skip it if another Minecraft character is preferred.
| Pros | Cons |
|---|---|
| Official design; dimensional tunic and mask | Listed version is Large 10–12 |
The Alex-specific design is the defining feature.
Buy the Alex Classic Minecraft Costume on Amazon
18. Cookie Monster Extra Deluxe Plush Costume — Best for Sesame Street Toddlers
Price shown for this roundup: $46.99. Check Amazon for the latest price.
Check the Cookie Monster Costume on Amazon
Buy it if you want an officially licensed plush Cookie Monster costume. Skip it if the displayed price or Small 2T size does not suit you.
The costume includes a plush jumpsuit, hands, headpiece and shoe covers and is officially licensed. The listed version is Small 2T.
The multiple plush components create a more complete character outfit. The higher reference price and toddler-specific size are the main limitations.
Who should buy it
Choose it for a toddler who specifically wants Cookie Monster.
Who should skip it
Skip it when a lower-cost or larger costume is needed.
| Pros | Cons |
|---|---|
| Officially licensed; plush construction; shoe covers | $46.99 reference price; Small 2T |
The licensed character and plush construction are the main features.
Buy the Cookie Monster Costume on Amazon
19. Elmo Extra Deluxe Plush Costume — Best for Elmo Fans
Price shown for this roundup: $44.49. Check Amazon for the latest price.
Check the Elmo Extra Deluxe Costume on Amazon
Buy it if you want a plush Elmo costume for a toddler. Skip it if you need a larger size or lower reference price.
The Elmo costume uses a plush bodysuit and headpiece and is listed as Small 2T.
The plush character construction is its defining feature. The toddler size and $44.49 reference price narrow the audience.
Who should buy it
Choose it for toddlers who specifically want Elmo.
Who should skip it
Skip it when another size or character is needed.
| Pros | Cons |
|---|---|
| Plush bodysuit; headpiece; recognizable character | Small 2T; $44.49 reference price |
The plush Elmo construction is the main reason to consider it.
Buy the Elmo Extra Deluxe Costume on Amazon
Toddler and kids’ themed costumes
20. Rubies Triceratops Costume — Best for Toddler Dinosaur Fans
Price shown for this roundup: $35.49. Check Amazon for the latest price.
Check the Rubies Triceratops Costume on Amazon
Buy it if you want a toddler dinosaur costume with a jumpsuit and headpiece. Skip it if an older-child size is required.
The Rubies Triceratops costume combines a dinosaur jumpsuit and headpiece and includes toddler sizing such as XS 2–4.
The one-piece structure makes the dinosaur theme easy to recognize. Toddler sizing limits this particular version.
Who should buy it
Choose it for toddlers who want a Triceratops costume.
Who should skip it
Skip it when the wearer needs an older-child or adult size.
| Pros | Cons |
|---|---|
| Jumpsuit and headpiece; dinosaur design | Toddler sizing |
The jumpsuit-and-headpiece combination creates the main dinosaur look.
Buy the Rubies Triceratops Costume on Amazon
21. Rubies Shark Costume for Toddlers — Best for Toddler Shark Costumes
Price shown for this roundup: $30.49. Check Amazon for the latest price.
Check the Rubies Shark Costume on Amazon
Buy it if you want a toddler shark costume with fins and a headpiece. Skip it if another theme is preferred.
The costume uses a romper with snap closure, headpiece and fins to create a shark design.
The fins and headpiece reinforce the shark theme without requiring separate accessories. The toddler format is the main limitation.
Who should buy it
Choose it for toddlers who like sharks or ocean-themed costumes.
Who should skip it
Skip it when an older-child size is required.
| Pros | Cons |
|---|---|
| Romper; fins; headpiece | Toddler sizing |
The fins and headpiece give the costume its main shark identity.
Buy the Rubies Shark Costume on Amazon
22. Disney Princess Ariel Toddler Costume — Best for Disney Mermaid Dress-Up
Price shown for this roundup: $29.49. Check Amazon for the latest price.
Check the Disney Princess Ariel Costume on Amazon
Buy it if you want an official Ariel costume with glitter styling. Skip it if the listed 3T–4T size does not fit.
The costume uses glitter fabric and Ariel character details, including a cameo. The listed version is Medium 3T–4T.
The official character styling is its defining feature. The listed toddler size is the main limitation.
Who should buy it
Choose it for toddlers who want Ariel specifically.
Who should skip it
Skip it when another size or character is needed.
| Pros | Cons |
|---|---|
| Official Ariel design; glitter fabric; character cameo | Medium 3T–4T version |
The official Ariel styling makes the costume immediately character-specific.
Buy the Disney Princess Ariel Costume on Amazon
23. Rubies DC Comics Superheroes Costume Set — Best for Multi-Hero Role Play
Price shown for this roundup: $26.49. Check Amazon for the latest price.
Check the Rubies DC Comics Superheroes Set on Amazon
Buy it if multiple DC hero identities are useful. Skip it if you expect pants to be included.
The set includes Batman, Superman and Robin tabards, capes, masks, boot tops and gauntlets. Pants are not included.
The multiple hero options create variety within one set. The missing pants are the clearest limitation.
Who should buy it
Choose it for children who enjoy several DC superheroes.
Who should skip it
Skip it if you need a pants-included complete outfit.
| Pros | Cons |
|---|---|
| Batman, Superman and Robin options; capes and masks | Pants not included |
The ability to switch between multiple superhero identities is its defining feature.
Buy the Rubies DC Comics Superheroes Set on Amazon
Adult and novelty costumes
24. QRT 9PCS Men’s Pirate Costume Set — Best for Men’s Pirate Costumes
Price shown for this roundup: $37.79. Check Amazon for the latest price.
Check the QRT Pirate Costume on Amazon
Buy it if you want a nine-piece pirate outfit. Skip it if you need another size or a licensed character.
The QRT set includes a shirt, pants, head scarf, sash belt, eye patch, necklace, bracelet and rings. The listed version is Large.
The nine-piece construction covers both clothing and pirate accessories. The listed Large size is the principal limitation.
Who should buy it
Choose it for an adult who wants a traditional pirate appearance.
Who should skip it
Skip it when another size or character-specific costume is needed.
| Pros | Cons |
|---|---|
| Nine-piece outfit; multiple pirate accessories | Listed version is Large |
The nine-piece format reduces the need to assemble a pirate look separately.
Buy the QRT Pirate Costume on Amazon
25. Lulu Home Inflatable T-Rex — Best for a Large Adult Dinosaur Costume
Price shown for this roundup: $26.99. Check Amazon for the latest price.
Check the Lulu Home T-Rex Costume on Amazon
Buy it if you want a large inflatable dinosaur silhouette. Skip it if you prefer a conventional costume without inflation.
The brown inflatable T-Rex is designed at 7.5 feet and includes a bodysuit, fan and gloves. Batteries are not included.
The 7.5-foot design is the measurable feature that defines this costume. The need for a separate battery supply is the practical limitation.
Who should buy it
Choose it for adults who want a large novelty dinosaur costume.
Who should skip it
Skip it when an ordinary fabric costume is preferred.
| Pros | Cons |
|---|---|
| 7.5-foot inflatable design; fan and gloves | Batteries not included |
The oversized T-Rex shape is its defining feature.
Buy the Lulu Home T-Rex Costume on Amazon
26. KMiKE Inflatable Shark Costume — Best for an Adult Shark Costume
Price shown for this roundup: $31.19. Check Amazon for the latest price.
Check the KMiKE Inflatable Shark Costume on Amazon
Buy it if you want an oversized inflatable shark. Skip it if you prefer a conventional costume.
The KMiKE costume uses an oversized pink inflatable shark design for adults.
The large shark silhouette is the primary differentiating feature. Its inflatable construction is the main practical limitation.
Who should buy it
Choose it for adults who want a novelty shark costume.
Who should skip it
Skip it if you want a non-inflatable costume.
| Pros | Cons |
|---|---|
| Oversized shark design; adult format | Inflatable construction |
The oversized shark profile is the main reason to choose it.
Buy the KMiKE Inflatable Shark Costume on Amazon
27. Inflatable Alien Costume — Best for a Full-Body Alien Look
Price shown for this roundup: $29.99. Check Amazon for the latest price.
Check the Inflatable Alien Costume on Amazon
Buy it if the wearer is within the listed 160–185 cm height range. Skip it if that range does not fit.
The green costume creates a full-body inflatable alien appearance and is listed for people 160–185 cm tall.
The stated height range gives shoppers a concrete sizing reference. The same height restriction is the key limitation.
Who should buy it
Choose it for adults within the listed height range who want a full-body alien look.
Who should skip it
Skip it when the wearer’s height falls outside the listed range.
| Pros | Cons |
|---|---|
| Full-body alien design; stated 160–185 cm range | Limited listed height range |
The full-body inflatable alien silhouette is its defining feature.
Buy the Inflatable Alien Costume on Amazon
28. SEMETOR Inflatable Ride-On Peacock — Best for Ride-On Novelty
Price shown for this roundup: $25.97. Check Amazon for the latest price.
Check the SEMETOR Peacock Costume on Amazon
Buy it if you want an unusual ride-on inflatable costume. Skip it if you prefer conventional clothing.
The colorful SEMETOR costume is designed for adults 160–200 cm tall and uses an inflatable ride-on peacock design. The listing describes quick inflation and deflation.
The ride-on construction makes it visually different from ordinary costumes. The inflatable format is its main practical limitation.
Who should buy it
Choose it for adults who prioritize novelty and a distinctive silhouette.
Who should skip it
Skip it if a conventional outfit is preferred.
| Pros | Cons |
|---|---|
| Ride-on design; 160–200 cm range; quick inflation and deflation | Inflatable construction |
The ride-on peacock design is the main reason to choose it.
Buy the SEMETOR Peacock Costume on Amazon
29. IRETG Inflatable Banana Costume — Best for Adult Novelty Comedy
Price shown for this roundup: $26.99. Check Amazon for the latest price.
Check the IRETG Inflatable Banana Costume on Amazon
Buy it if you want a straightforward adult novelty costume. Skip it if you do not want to manage a battery-powered fan.
The IRETG banana costume uses lightweight 210T polyester, a built-in fan, elastic cuffs and a clear face opening. The listing states approximately 60–90 seconds for inflation and requires four AA batteries, which are not included.
The built-in fan simplifies inflation, while the banana design provides the novelty theme. The four-AA-battery requirement is the main limitation.
Who should buy it
Choose it for adults who want a humorous costume for parties and Halloween events.
Who should skip it
Skip it if you prefer a conventional costume or do not want to manage batteries.
| Pros | Cons |
|---|---|
| Built-in fan; lightweight polyester; clear face opening | Four AA batteries not included |
The inflatable banana shape and built-in fan are its defining features.
Buy the IRETG Inflatable Banana Costume on Amazon
Police, role-play and additional kids’ costumes
30. JOYLOKY 11PCS Police Costume — Best for Younger Kids’ Role Play
Price shown for this roundup: $23.48. Check Amazon for the latest price.
Check the JOYLOKY Police Costume on Amazon
Buy it if you want an 11-piece police role-play set for ages 3–5. Skip it if the child needs another size.
The set includes a police uniform, handcuffs, walkie-talkie, sunglasses, shoulder light, holster and ID. The listed version is S 3–5 years.
The 11-piece format provides multiple role-play accessories beyond the uniform. The listed age range is the main limitation.
Who should buy it
Choose it for younger children who enjoy police-themed pretend play.
Who should skip it
Skip it when the child is outside the listed size range.
| Pros | Cons |
|---|---|
| 11 pieces; multiple role-play accessories | Listed version is S 3–5 years |
The accessory mix is the main reason to consider this police set.
Buy the JOYLOKY Police Costume on Amazon
31. Joycover Police Officer Costume — Best for Detailed Police Role Play
Price shown for this roundup: $26.72. Check Amazon for the latest price.
Check the Joycover Police Officer Costume on Amazon
Buy it if you want an 11-piece police outfit for ages 5–7. Skip it if the child needs a different size.
The Joycover set includes a uniform, string lights, tie, belt, police card, handcuffs, body-worn camera, aviator glasses and walkie-talkie. The listed version is M 5–7Y.
The accessory count and variety make it a detailed role-play set. The M 5–7Y size is its main limitation.
Who should buy it
Choose it for children in the listed age range who want a detailed police costume.
Who should skip it
Skip it when another size is required.
| Pros | Cons |
|---|---|
| 11 pieces; tie, belt, glasses and role-play accessories | Listed version is M 5–7Y |
The combination of uniform and accessories makes this a detailed role-play outfit.
Buy the Joycover Police Officer Costume on Amazon
Buying Guide
Start with the costume theme and wearer size, then check what is included and whether the price still makes sense when you reach Amazon’s product page.
1. Match the costume to the wearer
Children’s options range from toddler costumes to versions for older children. Check the exact size attached to the Amazon listing rather than relying only on the product name.
2. Decide whether you want a complete set
Multi-piece sets such as the LIMIROLER, Meland and police costumes include several accessories. Other products are primarily dresses, robes, jumpsuits or inflatable suits.
3. Character authenticity matters
If the wearer wants a particular character, choose a costume built around that character. This roundup includes Minecraft Steve, Alex, Creeper and Ender Dragon, as well as Princess Peach, Ariel, Maleficent, Elmo, Cookie Monster, Kevin Minion, Cakey Cat and Ravenclaw.
4. Check inflatable costume requirements
Inflatable costumes need special attention to fans, batteries, inflation and fit. The Lulu Home T-Rex includes a fan but requires separate batteries. The IRETG banana specifically requires four AA batteries that are not included.
5. Check the price on Amazon before purchasing
Amazon’s official Prime Big Deal Days guidance says shoppers can use product-page price history to review pricing information. New Today’s Big Deals also launch three times daily during the event. See Amazon’s Prime Big Deal Days shopping guidance.
Methodology
This roundup compares the 30 costume listings using their stated costume type, size, included components, construction and listed reference price. Editorial roles are assigned according to concrete differences between the products, such as piece count, character identity, costume format, included accessories or stated size range.
No hands-on costume testing is claimed. The product descriptions and specifications are based on the Amazon listing information used for this roundup, while Prime Big Deal Days dates and event rules were checked against Amazon’s official 2026 event information.
Amazon confirms that Prime Big Deal Days 2026 runs October 6–7, with 48 hours of Prime-member deals across more than 35 categories and Halloween preparation included among the seasonal shopping areas. View Amazon’s official announcement.
FAQ
When is Amazon Prime Big Deal Days 2026?
Amazon Prime Big Deal Days 2026 takes place October 6–7. Amazon says the event starts at 12:01 a.m. PDT on October 6 and ends at 11:59 p.m. PDT on October 7. Amazon’s official FAQ provides the schedule.
Are Halloween costumes part of Prime Big Deal Days?
Yes, Halloween preparation is included in Amazon’s Prime Big Deal Days shopping categories. Amazon’s 2026 announcement specifically mentions Halloween preparation among the seasonal shopping areas featured during the event. See Amazon’s event announcement.
Do I need Amazon Prime for Prime Big Deal Days?
Yes. Amazon says Prime membership is required to access Prime Big Deal Days deals. Membership offers can vary by country and account. Read Amazon’s official FAQ.
For more information about Prime trial eligibility, see the Gizmosum Amazon Prime Free Trial 2026 guide.
Can I shop Prime Big Deal Days deals before October 6?
Yes. Amazon says Prime members can access early Prime Big Deal Days savings before the main October 6–7 event. Amazon’s early-deals page confirms that early savings are available.
How often do new Prime Big Deal Days offers appear?
Amazon says Today’s Big Deals launch three times daily. The listed drop times are midnight, 8 a.m. and 1 p.m. PDT. Amazon’s official FAQ provides the schedule.
Should I assume the prices in this article are the final Prime Big Deal Days prices?
No. The displayed prices are reference prices for the products in this roundup. Amazon can change prices, promotions, sellers and availability. Check the Amazon product page immediately before purchasing.
Final Thought
For princess and fantasy dress-up, the roundup includes Fedio Princess Dress Up, Meland Mermaid Dress, LIMIROLER Princess Set, Cat Costume for Girls and RISFUNIA Black Cat Costume.
The character and toddler options include Steve Classic Minecraft, Minecraft Ender Dragon, Princess Peach, Kevin Minion, Maleficent, Cakey Cat, Ravenclaw Deluxe Robe, Creeper Classic Minecraft, Disney Princess Ariel, Minecraft Nether Armor, Alex Classic Minecraft, Cookie Monster, Elmo, Rubies Triceratops, Rubies Shark, DC Comics Superheroes and JOYLOKY Police Costume.
For adult and novelty Halloween wear, the options are QRT Pirate Costume, Lulu Home T-Rex, KMiKE Inflatable Shark, Inflatable Alien, SEMETOR Peacock and IRETG Inflatable Banana.
Amazon’s October event runs October 6–7, while early Prime Big Deal Days savings are already available before the main event. Because individual product prices and availability can change, check the Amazon listing before completing a purchase. See Amazon’s current early-deals information.