---
title: "Blow Up Halloween Costumes for Kids — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/blow-up-halloween-costumes-for-kids"
last_updated: "2026-08-10T23:15:35.174Z"
locale: en
meta:
description: "Niche score 27/100 · $0/yr market · 53K searches/yr · $31.28 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 27/100 · $0/yr market · 53K searches/yr · $31.28 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Blow Up Halloween Costumes for Kids — $0/yr Amazon US Niche (2026) - Flapen"
---
# **blow up halloween costumes for kids**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 17Conversion 0Competition 11Returns 10Price range 95Avg price 95Brand share 31Review moat 94Quality gap 42
**Avg price**
**Incredible****$31.28**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.74–$42.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****126.5**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-16.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Returns**
**Bad****9.1%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$0**
$0/yr · 53K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, blow up halloween costumes for kids is a $0/yr Amazon United States market (53K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 27/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **blow up halloween costumes for kids market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$16K–$23K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#1,806**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **12.9%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**8**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**86%**
Top 20: 100%
**Open market**
**0%**
- Stegosaurus22% - ROC PARTY19% - KOOY16% - Lumiparty15% - Spinosaurus15% - One Casa14% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 77 weeks — -16.0% search growth over the last 90 days.
8K6KSpike '25Prime Day '25Spike '26 seasonNovDecJanAprMayJunJulAugSepOctNovDecJanAprMayJun
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 105.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/blow-up-halloween-costumes-for-kids/trend)
## **Top blow up halloween costumes for kids search terms**
- **kids inflatable costumes**20K/yr-22.7%0.5% conv. - **blow up halloween costumes for kids**17K/yr+231.4%0.2% conv. - **blow up kids costume**16K/yr-50.1%0.6% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/blow-up-halloween-costumes-for-kids/search-terms)
## **Top blow up halloween costumes for kids products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$020%$030%$040%$0101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Stegosaurus Inflatable Axolotl Costume for Kids Halloween Kid Blow Up Costume Deluxe Pink Costumes for Girls Boys Cosplay Party**Stegosaurus**$42.12**4.6★293 rev](https://www.amazon.com/dp/B0CDC2M5L1) [2**Kids Inflatable Axolotl Costume Funny Birthday Gift for Girls&Boys Blow Up Ride On Outfit for Party & Cosplay(Blue-green LXL)**ROC PARTY**$25.70**4.2★22 rev](https://www.amazon.com/dp/B0FL2GLVVL) [3**KOOY Inflatable Unicorn Costume Kids Blow up Unicorn Costume Unicorn Inflatable Costume Funny Halloween Costumes Blow Up Costume For Kids7-10Y**KOOY**$25.00**4.5★207 rev](https://www.amazon.com/dp/B0D3ZWLW8Y) [4**Lumiparty Inflatable Dinosaur Costume for Kids Light Up T-Rex Funny Blow Up Halloween Party Cosplay Dress Up Outfit Boys Girls Blue**Lumiparty**$21.74**4.5★30 rev](https://www.amazon.com/dp/B0FH4QKL5J) [5**Spinosaurus Inflatable Squirrel Costume Kids Thanksgiving Inflatable Costume Christmas Blow Up Squirrel Costumes Halloween Inflatable Suit for Boys Girls**Spinosaurus**$41.87**4.7★29 rev](https://www.amazon.com/dp/B0F9JRMVV8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kids Inflatable Axolotl Costume Funny Birthday Gift for Girls&Boys Blow Up Ride On Outfit for Party & Cosplay(Blue-green LXL)**ROC PARTY**$25.70**22 rev11mo ago](https://www.amazon.com/dp/B0FL2GLVVL) [**Lumiparty Inflatable Dinosaur Costume for Kids Light Up T-Rex Funny Blow Up Halloween Party Cosplay Dress Up Outfit Boys Girls Blue**Lumiparty**$21.74**30 rev1y ago](https://www.amazon.com/dp/B0FH4QKL5J) [**Spinosaurus Inflatable Squirrel Costume Kids Thanksgiving Inflatable Costume Christmas Blow Up Squirrel Costumes Halloween Inflatable Suit for Boys Girls**Spinosaurus**$41.87**29 rev1y ago](https://www.amazon.com/dp/B0F9JRMVV8) [**One Casa Halloween Inflatable Costume Kids Blow Up Full Body Shark Suit Boys Girls (4-5YRS)**One Casa**$31.27**178 rev2y ago](https://www.amazon.com/dp/B0D4QP2TRK) [**KOOY Inflatable Unicorn Costume Kids Blow up Unicorn Costume Unicorn Inflatable Costume Funny Halloween Costumes Blow Up Costume For Kids7-10Y**KOOY**$25.00**207 rev2y ago](https://www.amazon.com/dp/B0D3ZWLW8Y)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kids Inflatable Axolotl Costume Funny Birthday Gift for Girls&Boys Blow Up Ride On Outfit for Party & Cosplay(Blue-green LXL)**ROC PARTY**$25.70**4.2★**▲ 423%**](https://www.amazon.com/dp/B0FL2GLVVL) [**Spinosaurus Inflatable Squirrel Costume Kids Thanksgiving Inflatable Costume Christmas Blow Up Squirrel Costumes Halloween Inflatable Suit for Boys Girls**Spinosaurus**$41.87**4.7★**▲ 262%**](https://www.amazon.com/dp/B0F9JRMVV8) [**Lumiparty Inflatable Dinosaur Costume for Kids Light Up T-Rex Funny Blow Up Halloween Party Cosplay Dress Up Outfit Boys Girls Blue**Lumiparty**$21.74**4.5★**▲ 105%**](https://www.amazon.com/dp/B0FH4QKL5J) [**One Casa Halloween Inflatable Costume Kids Blow Up Full Body Shark Suit Boys Girls (4-5YRS)**One Casa**$31.27**4.5★**▲ 65%**](https://www.amazon.com/dp/B0D4QP2TRK) [**KOOY Inflatable Unicorn Costume Kids Blow up Unicorn Costume Unicorn Inflatable Costume Funny Halloween Costumes Blow Up Costume For Kids7-10Y**KOOY**$25.00**4.5★**▼ 38%**](https://www.amazon.com/dp/B0D3ZWLW8Y)
**~~View all trending →~~**
## **What buyers say about blow up halloween costumes for kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Fun/Entertainment Experience**15%
*“Fun& easy to move around in”*
**Size-Overall**11%
*“I was actually able to fit”*
**Inflation/Deflation**11%
*“Inflation system is straightforward”*
**Ease Of Use**10%
*“easy to use”*
**Quality-Overall**8%
*“A decent enough costume”*
**Durability**6%
*“Durable”*
**Value For Money**3%
*“Impressive for the price”*
**Design-Overall**3%
*“The squirrel design is genuinely cute”*
**Strength**3%
*“It doesnt feel flimsy or cheap”*
**Comfort-Overall**3%
*“is the kind of costume you can wear comfortably all day”*
### **What buyers complain about **
**Size-Overall**18%
*“this thing is actually huge on her”*
**Ease Of Use**5%
*“hard to walk in”*
**Value For Money**5%
*“The reason it is only four stars for me rather than five is the price”*
**Weight Heavy**5%
*“Its also a little bulky”*
**Thickness**5%
*“I did notice that the clear face shield is thicker than most of my inflatable costumes”*
**Hard Feel**3%
*“hard to walk in”*
**Strap/String Quality**2%
*“the strings are just a visual detriment”*
**Degree Of Motion**2%
*“movement can feel a bit limited”*
### **Top return reasons **
**Size-Overall**71%
**Product Condition**8%
**Material Quality**4%
**Advertised Vs Actual Product**4%
**Functionality-Overall**3%
**Length**2%
**Inflation/Deflation**2%
**Value For Money**1%
**Battery Inclusion**1%
**Waist Fit**1%
## **Common questions**
- **Is blow up halloween costumes for kids profitable to sell on Amazon United States?**
- The niche generates $0/yr across 6 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.0%. Flapen's verdict: Skip it (27/100).
- **How competitive is the blow up halloween costumes for kids niche?**
- 6 brands and 8 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in blow up halloween costumes for kids?**
- Top complaints mined from reviews: Size-Overall, Ease Of Use, Value For Money. The return rate is 9.1% — above our launch gate.
- **When does demand for blow up halloween costumes for kids peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 105.9× the quietest.
- **What does it cost to enter the blow up halloween costumes for kids niche?**
- Listings span $21.74–$42.12; the average listing price is $31.28 (sweet spot $15–$100). The average incumbent carries 127 reviews — the moat a new listing must climb.
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