---
title: "Pennywise Costume Kids Boys 8-10 — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/pennywise-costume-kids-boys-8-10"
last_updated: "2026-08-07T18:34:33.499Z"
locale: en
meta:
description: "Niche score 33/100 · $0/yr market · 122K searches/yr · $34.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 33/100 · $0/yr market · 122K searches/yr · $34.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Pennywise Costume Kids Boys 8-10 — $0/yr Amazon US Niche (2026) - Flapen"
---
# **pennywise costume kids boys 8-10**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 65Conversion 0Competition 16Returns 0Price range 94Avg price 95Brand share 26Review moat 83Quality gap 48
**Avg price**
**Incredible****$34.73**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.74–$50.83**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****336.46**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+43.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****80%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$0**
$0/yr · 122K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****14.0%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, pennywise costume kids boys 8-10 is a $0/yr Amazon United States market (122K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 33/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pennywise costume kids boys 8-10 market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$17K–$26K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#4,228**
- **Page quality**
- **0%**
- **Prime**
- **92%**
- **Sponsored**
- **38%**
- **Out of stock**
- **49.8%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▲rising
**Sellers**
**24**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**80%**
Top 20: 100%
**Open market**
**6%**
- Fun World38% - Fun Costumes31% - Spooktacular Creations9% - Morph7% - Groydbna5% - Sinkawa Jackets4% - Open — no brand owns it (3 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +43.7% search growth over the last 90 days.
25K15KSpike '24Spike '25Spike '26 seasonSepDecJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 197.3×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/pennywise-costume-kids-boys-8-10/trend)
## **Top pennywise costume kids boys 8-10 search terms**
- **pennywise costume for girls**35K/yr+30.2%0.2% conv. - **it costume for girls**3K/yr+63.9%0.0% conv. - **girls pennywise costume**26K/yr+22.3%0.0% conv. - **pennywise girl costume**10K/yr+86.8%0.0% conv. - **girl pennywise costume**15K/yr+25.5%0.0% conv. - **pennywise costume girls**9K/yr+110.2%0.0% conv. - **pennywise costume kids girls**6K/yr+94.0%0.0% conv. - **pennywise girls costume**4K/yr-10.9%0.0% conv. - **girl pennywise costume kids**5K/yr+76.2%0.0% conv. - **it girl costume**5K/yr+40.0%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/pennywise-costume-kids-boys-8-10/search-terms)
## **Top pennywise costume kids boys 8-10 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%$0101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fun World Girls Carnevil Clown Child Costume Large**Fun World**$35.74**4.5★1,702 rev](https://www.amazon.com/dp/B07TT84BK8) [2**Fun Costumes Girls Creepy Clown Costume - Scary Circus Clown Halloween Costume for Kids Vintage - Creepy Doll Cosplay - Large - Multicolor**Fun Costumes**$14.74**5.0★14 rev](https://www.amazon.com/dp/B0CBND9GM3) [3**Groydbna Halloween Girls Clown Tutu Dress Costume Cute Clown Cosplay Dress up for Kids 8-9Y**Groydbna**$30.85**4.4★11 rev](https://www.amazon.com/dp/B0D58GKJM3) [4**Sinkawa Jackets Sequin Bodysuit Swimsuit Sparkle Costume Tour Outfit Halloween Cosplay For Women Girls11-12**Sinkawa Jackets**$37.96**4.6★185 rev](https://www.amazon.com/dp/B0DB15YC3C) [5**Morph Scary Clown Costume For Kids Scary Clown Costume Girls Halloween Costumes Halloween Costumes For Kids M**Morph**$36.69**4.5★438 rev](https://www.amazon.com/dp/B0BXF8W7TM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Dressy Daisy Nun Dress Halloween Costume Outfit Black Robe with White Collar and Headpiece for Little Kids Girls Size 6-8 M**Dressy Daisy**$25.86**10 rev1y ago](https://www.amazon.com/dp/B0DQBTHMGT) [**RWYBEIW Scary Halloween Clown Costume for Girls Tulle Tutu Dress Knife Socks Gloves Hairpin Sets for Halloween Party Cosplay (Black White 10-12 Years)**RWYBEIW**$27.88**39 rev1y ago](https://www.amazon.com/dp/B0DHW8WLPT) [**PROMOTED TO BIG SISTER Kids Scary Clown Costume Girls Halloween Costume Movie Cosplay Dress (11-12 Years)**PROMOTED TO BIG SISTER**$18.23**12 rev1y ago](https://www.amazon.com/dp/B0DDPL5L66) [**Sinkawa Jackets Sequin Bodysuit Swimsuit Sparkle Costume Tour Outfit Halloween Cosplay For Women Girls11-12**Sinkawa Jackets**$37.96**185 rev1y ago](https://www.amazon.com/dp/B0DB15YC3C) [**Groydbna Halloween Girls Clown Tutu Dress Costume Cute Clown Cosplay Dress up for Kids 8-9Y**Groydbna**$30.85**11 rev2y ago](https://www.amazon.com/dp/B0D58GKJM3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Groydbna Halloween Girls Clown Tutu Dress Costume Cute Clown Cosplay Dress up for Kids 8-9Y**Groydbna**$30.85**4.4★**▲ 1000%**](https://www.amazon.com/dp/B0D58GKJM3) [**Sinkawa Jackets Sequin Bodysuit Swimsuit Sparkle Costume Tour Outfit Halloween Cosplay For Women Girls11-12**Sinkawa Jackets**$37.96**4.6★**▲ 1000%**](https://www.amazon.com/dp/B0DB15YC3C) [**Dressy Daisy Nun Dress Halloween Costume Outfit Black Robe with White Collar and Headpiece for Little Kids Girls Size 6-8 M**Dressy Daisy**$25.86**4.0★**▲ 1000%**](https://www.amazon.com/dp/B0DQBTHMGT) [**Fun Costumes Girls Creepy Clown Costume - Scary Circus Clown Halloween Costume for Kids Vintage - Creepy Doll Cosplay - Large - Multicolor**Fun Costumes**$14.74**5.0★**▲ 1000%**](https://www.amazon.com/dp/B0CBND9GM3) [**PROMOTED TO BIG SISTER Kids Scary Clown Costume Girls Halloween Costume Movie Cosplay Dress (11-12 Years)**PROMOTED TO BIG SISTER**$18.23**4.5★**▲ 73%**](https://www.amazon.com/dp/B0DDPL5L66)
**~~View all trending →~~**
## **What buyers say about pennywise costume kids boys 8-10**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**100%
*“And the perfect fit”*
### **What buyers complain about **
**Quality-Overall**50%
*“Quality could be much better”*
**Size-Overall**50%
*“It runs a little smaller than expected so I would size up to get a perfect fit”*
### **Top return reasons **
**Size-Overall**46%
**Advertised Vs Actual Product**31%
**Material Quality**8%
**Color**8%
**Product Condition**8%
## **Common questions**
- **Is pennywise costume kids boys 8-10 profitable to sell on Amazon United States?**
- The niche generates $0/yr across 13 tracked products. 90-day search growth is +43.7%. Flapen's verdict: Skip it (33/100).
- **How competitive is the pennywise costume kids boys 8-10 niche?**
- 9 brands and 24 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in pennywise costume kids boys 8-10?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall. The return rate is 14.0% — above our launch gate.
- **When does demand for pennywise costume kids boys 8-10 peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 197.3× the quietest.
- **What does it cost to enter the pennywise costume kids boys 8-10 niche?**
- Listings span $14.74–$50.83; the average listing price is $34.73 (sweet spot $15–$100). The average incumbent carries 336 reviews — the moat a new listing must climb.
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