---
title: "Wendy Peffercorn Costume — $116K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/wendy-peffercorn-costume"
last_updated: "2026-08-09T09:20:04.526Z"
locale: en
meta:
description: "Niche score 49/100 · $116K/yr market · 84K searches/yr · $26.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $116K/yr market · 84K searches/yr · $26.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Wendy Peffercorn Costume — $116K/yr Amazon US Niche (2026) - Flapen"
---
# **wendy peffercorn costume**
**Skip it**
High returns (13.6%) — this niche doesn't clear our bar today.
Market size 27Growth 83Conversion 61Competition 25Returns 0Price range 73Avg price 95Brand share 30Review moat 83Quality gap 76
**Avg price**
**Incredible****$26.01**
avg listing price — sweet spot $15–$100
**Growth**
**Great****+79.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****346.29**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****$5.30–$41.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.3%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****87%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$116K**
$116K/yr · 84K searches
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Returns**
**Bad****13.6%**
return rate — above 5% kills the launch gate
**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, wendy peffercorn costume is a $116K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 49/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **wendy peffercorn costume market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$78K–$104K**
- units × avg price
- **Conversion rate**
- **5.3%**
- **Avg BSR**
- **#3,592**
- **Page quality**
- **0%**
- **Prime**
- **79%**
- **Sponsored**
- **29%**
- **Out of stock**
- **8.7%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▲rising
**Sellers**
**13**
**Top-5 brand share**
**87%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**9%**
- Matiniy40% - Ramede20% - Fun Costumes15% - Adoretex7% - QINSEN5% - FeelinGirl4% - Open — no brand owns it (3 brands, 9%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +79.3% search growth over the last 90 days.
18K13KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 148.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/wendy-peffercorn-costume/trend)
## **Top wendy peffercorn costume search terms**
- **wendy peffercorn costume**62K/yr+68.8%3.7% conv. - **wendy peffercorn**6K/yr+104.7%1.9% conv. - **wendy peppercorn costume**5K/yr+98.4%6.3% conv. - **squints and wendy costume**5K/yr+140.0%0.0% conv. - **wendy sandlot costume**4K/yr+59.4%6.4% conv. - **sandlot lifeguard costume**3K/yr+19.0%5.8% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/wendy-peffercorn-costume/search-terms)
## **Top wendy peffercorn costume 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%$12K20%$23K30%$35K40%$46K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**5Pcs Halloowen Cosplay Costume Set for Women Red Headband Sunglasses Red Swimsuit for Dress Up Accessories Supplies (L)**Matiniy**$31.74**4.0★9 rev](https://www.amazon.com/dp/B0D6W84CCC) [2**Ramede 5 Pcs Halloween Costume for Women Guard Costume Set Boyleg Swimsuit Fanny Pack Whistle Hair Bow Sunglasses(Medium)**Ramede**$38.22**4.8★26 rev](https://www.amazon.com/dp/B0C6Q7NPXS) [3**Matiniy 4Pack Halloween Guard Costume Kit Including Red Headband White Frame Sunglasses Whistle Fanny Pack for Women Accessories Supplies**Matiniy**$19.64**4.5★16 rev](https://www.amazon.com/dp/B0D6W626NM) [4**Fun Costumes Wendy Peffercorn Adult Sandlot Costume - Red Medium**Fun Costumes**$41.08**4.1★132 rev](https://www.amazon.com/dp/B07GDSK31J) [5**Adoretex Guard Fanny Pack Whistle with Lanyard Equipment Set - First Aid Hip Pack with Adjustable Strap and 3 Zipper Pockets**Adoretex**$9.42**4.5★584 rev](https://www.amazon.com/dp/B01FVAW06U)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**QINSEN Sleeveless Athletic Dress for Women Tennis Dress Built in Shorts Pockets Golf Active Dress Fairy Red S**QINSEN**$33.64**1,252 rev1y ago](https://www.amazon.com/dp/B0DSW17R8F) [**FeelinGirl Shapewear Tummy Control Bodysuits for Women Seamless Body Shaper Shapewear Thong Body Shaper XS-S**FeelinGirl**$20.06**794 rev2y ago](https://www.amazon.com/dp/B0D94GX4D9) [**5Pcs Halloowen Cosplay Costume Set for Women Red Headband Sunglasses Red Swimsuit for Dress Up Accessories Supplies (L)**Matiniy**$31.74**9 rev2y ago](https://www.amazon.com/dp/B0D6W84CCC) [**Matiniy 4Pack Halloween Guard Costume Kit Including Red Headband White Frame Sunglasses Whistle Fanny Pack for Women Accessories Supplies**Matiniy**$19.64**16 rev2y ago](https://www.amazon.com/dp/B0D6W626NM) [**5Pcs Halloowen Cosplay Costume Set for Women Red Headband Sunglasses Red Swimsuit for Dress Up Accessories Supplies (XL)**Matiniy**$31.33**9 rev2y ago](https://www.amazon.com/dp/B0D6W7GBGW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**QINSEN Sleeveless Athletic Dress for Women Tennis Dress Built in Shorts Pockets Golf Active Dress Fairy Red S**QINSEN**$33.64**4.2★**▲ 762%**](https://www.amazon.com/dp/B0DSW17R8F) [**FeelinGirl Shapewear Tummy Control Bodysuits for Women Seamless Body Shaper Shapewear Thong Body Shaper XS-S**FeelinGirl**$20.06**3.9★**▲ 590%**](https://www.amazon.com/dp/B0D94GX4D9) [**5Pcs Halloowen Cosplay Costume Set for Women Red Headband Sunglasses Red Swimsuit for Dress Up Accessories Supplies (L)**Matiniy**$31.74**4.0★**▲ 114%**](https://www.amazon.com/dp/B0D6W84CCC) [**Fun Costumes Wendy Peffercorn Adult Sandlot Costume - Red Small**Fun Costumes**$41.37**4.1★**▲ 73%**](https://www.amazon.com/dp/B07GDPWJBK) [**Ramede 5 Pcs Halloween Costume for Women Guard Costume Set Boyleg Swimsuit Fanny Pack Whistle Hair Bow Sunglasses(Medium)**Ramede**$38.22**4.8★**▲ 46%**](https://www.amazon.com/dp/B0C6Q7NPXS)
**~~View all trending →~~**
## **What buyers say about wendy peffercorn costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**38%
*“It fit well”*
**Comfort-Overall**16%
*“Comfortable and cute”*
**Shape/Style**10%
*“The best shaper I have owned so far”*
**Color**8%
*“Excited to get more colors”*
**Durability**5%
*“Good quality, durable”*
**Value For Money**5%
*“affordable”*
**Breathability**5%
*“Its breathable and light to wear”*
**Material Quality**3%
*“Great material”*
**Stretchability/Expandability/Elasticity**3%
*“stretchy”*
### **What buyers complain about **
**Size-Overall**58%
*“Runs big,”*
**Quality-Overall**25%
*“A little cheap”*
**Material Quality**5%
*“Cheap Material”*
### **Top return reasons **
**Size-Overall**57%
**Length**7%
**Waist Fit**6%
**Chest Fit**5%
**Shape/Style**5%
**Material Quality**2%
**Advertised Vs Actual Product**2%
**Value For Money**2%
**Quality-Overall**2%
**Hip Fit**2%
## **Common questions**
- **Is wendy peffercorn costume profitable to sell on Amazon United States?**
- The niche generates $116K/yr across 14 tracked products. 90-day search growth is +79.3%. Flapen's verdict: Skip it (49/100).
- **How competitive is the wendy peffercorn costume niche?**
- 9 brands and 13 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 87% of demand.
- **What do buyers complain about in wendy peffercorn costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 13.6% — above our launch gate.
- **When does demand for wendy peffercorn costume peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 148.9× the quietest.
- **What does it cost to enter the wendy peffercorn costume niche?**
- Listings span $5.30–$41.37; the average listing price is $26.01 (sweet spot $15–$100). The average incumbent carries 346 reviews — the moat a new listing must climb.
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