---
title: "Stone Age Costume Boys — £18K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/stone-age-costume-boys"
last_updated: "2026-07-31T14:20:33.422Z"
locale: en
meta:
description: "Niche score 40/100 · £18K/yr market · 73K searches/yr · £14.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · £18K/yr market · 73K searches/yr · £14.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Stone Age Costume Boys — £18K/yr Amazon UK Niche (2026) - Flapen"
---
# **stone age costume boys**
**Skip it**
A small market ($18K/yr) — this niche doesn't clear our bar today.
Market size 5Growth 5Conversion 21Competition 67Returns 30Price range 80Avg price 72Brand share 46Review moat 92Quality gap 63
**Review moat**
**Great****156.36**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****£3.30–£66.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****£14.68**
avg listing price — sweet spot $15–$100
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****4.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£18K**
£18K/yr · 73K searches
**Growth**
**Bad****-40.9%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, stone age costume boys is a £18K/yr Amazon United Kingdom market (73K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 40/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **stone age costume boys market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **£29K–£37K**
- units × avg price
- **Conversion rate**
- **1.7%**
- **Avg BSR**
- **#1,439**
- **Page quality**
- **0%**
- **Prime**
- **81%**
- **Sponsored**
- **67%**
- **Out of stock**
- **10.3%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **201 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▲rising
**Sellers**
**30**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**45%**
Top 20: 88%
**Open market**
**18%**
- AYBUY26% - EDLMKM13% - My Illusions13% - Fun Shack13% - Matissa12% - Kaerm5% - Open — no brand owns it (13 brands, 18%)
## **Demand**
Weekly Amazon search volume, last 34 weeks — -40.9% search growth over the last 90 days.
2K2KSpike '26Prime Day '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jul '26
[**Open Trend **](https://flapen.com/research/uk/toys-games/stone-age-costume-boys/trend)
## **Top stone age costume boys search terms**
- **stone age costume boys**34K/yr-53.2%2.9% conv. - **caveman costume kids**9K/yr-15.7%2.7% conv. - **cave man costume kids**6K/yr-10.8%2.8% conv. - **stone age costume**8K/yr-42.8%1.4% conv. - **kids stone age costume**5K/yr-36.6%1.6% conv. - **stone age costumes**6K/yr-45.8%0.6% conv. - **stoneage costume kids boys**5K/yr-53.7%4.7% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/stone-age-costume-boys/search-terms)
## **Top stone age costume boys 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%3%£5486%£1K9%£2K12%£2K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**AYBUY Kids Caveman Costume Boys Stone Age Themed Costume Wild Cave Boys Outfit Halloween Cosplay Fancy Dress Dark Brown Robe Leopard Print Belt Headscarf Inflatable Stick 6-8 yr (M)**AYBUY**£8.20**4.4★243 rev](https://www.amazon.co.uk/dp/B0DCP4FZQJ) [2**My Illusions Boys Caveboy Prehistoric Stone Age Fancy Dress Kids Book Day Halloween Costume (Medium 7-9 Years)**My Illusions**£10.66**4.6★12 rev](https://www.amazon.co.uk/dp/B0FWYSDSKC) [3**AYBUY Kids Caveman Costume Boys Stone Age Themed Costume Wild Cave Boys Outfit Halloween Cosplay Fancy Dressapparel Dark Brown Robe Leopard Print Belt Headscarf Inflatable Stick 9-10 yr (L)**AYBUY**£7.97**4.4★243 rev](https://www.amazon.co.uk/dp/B0DCP42F9Q) [4**EDLMKM Kids Caveman Costume Stone Age Costume Boys Cavemen Costumes Kids Halloween Cosplay Fancy Dress**EDLMKM**£9.21**4.3★9 rev](https://www.amazon.co.uk/dp/B0FSRZMMZ6) [5**Fun Shack Stone Age Costume Boys Boys Caveman Costume Caveman Costumes Kids World Book Day Costumes for Kids X-Large**Fun Shack**£16.28**3.8★196 rev](https://www.amazon.co.uk/dp/B01LVW5K0E)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Childs Caveman Costume with Inflatable Club - Large - Kids Cave Dweller Fancy Dress Outfit for World Book Day Stone Age School Projects & Prehistoric Dress Up**I LOVE FANCY DRESS**£10.71**0 rev6mo ago](https://www.amazon.co.uk/dp/B0GGJK82KL) [**EDLMKM Kids Caveman Costume Cavemen Costumes Kids Stone Age Costume Boys Girls Halloween Cosplay Fancy DressL**EDLMKM**£8.96**9 rev8mo ago](https://www.amazon.co.uk/dp/B0G2S61X9K) [**Kaerm Girls Caveman Dress with Oversleeves Children Historical Stone Age Birthday Cave Girl Outfits Dak Brown 7-8 Years**Kaerm**£10.78**0 rev9mo ago](https://www.amazon.co.uk/dp/B0FVLQYCPN) [**EDLMKM Kids Caveman Costume Stone Age Costume Boys Cavemen Costumes Kids Halloween Cosplay Fancy Dress**EDLMKM**£9.21**9 rev10mo ago](https://www.amazon.co.uk/dp/B0FSRZMMZ6) [**BSBUY Kids Caveman Costume Boys Stone Age Themed Wild Cave Outfit Prehistoric Caveman Outfit Caveman Savage Dress Up Stone Age Costume Caveman World Book Day Halloween Costume Fancy Dress Costume(130)**BSBUY**£9.52**26 rev11mo ago](https://www.amazon.co.uk/dp/B0FNR6Q918)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Childs Caveman Costume with Inflatable Club - Large - Kids Cave Dweller Fancy Dress Outfit for World Book Day Stone Age School Projects & Prehistoric Dress Up**I LOVE FANCY DRESS**£10.71**0.0★**▲ 727%**](https://www.amazon.co.uk/dp/B0GGJK82KL) [**Haloumoning Boys Medieval Pants Costume Trousers Olive Green 8-10 Years**Haloumoning**£14.65**4.3★**▲ 715%**](https://www.amazon.co.uk/dp/B0D14KYY9B) [**Kaerm Girls Caveman Dress with Oversleeves Children Historical Stone Age Birthday Cave Girl Outfits Dak Brown 7-8 Years**Kaerm**£10.78**0.0★**▲ 712%**](https://www.amazon.co.uk/dp/B0FVLQYCPN) [**Matissa caveman costume kids Stone age outfit boys Cave Man kids stoneage boys Halloween Christmas fance dress party (Cave Boy Small)**Matissa**£7.86**4.3★**▲ 399%**](https://www.amazon.co.uk/dp/B0CGTVWNN6) [**Funidelia | Caveman Costumes for boys and girls size 5-6 years Caveman Stone Age Caveman Prehistoric - Color: Brown costume accessory - Fun costumes for your parties**Funidelia**£13.05**4.0★**▲ 382%**](https://www.amazon.co.uk/dp/B07TY1WWSR)
**~~View all trending →~~**
## **What buyers say about stone age costume boys**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**41%
*“age description fitted well”*
**Value For Money**27%
*“Really good dressing up outfit for cheap price”*
**Advertised Vs Actual Product**9%
*“Just what kids needed”*
**Quality-Overall**9%
*“Good quality”*
**Material Quality**9%
*“The material is good”*
### **What buyers complain about **
**Quality-Overall**33%
*“Very cheap get what you pay for”*
**Value For Money**17%
*“Its not worth the price”*
**Durability**17%
*“Fur falls apart everywhere after first use”*
**Size-Overall**17%
*“The necklace is big”*
### **Top return reasons **
**Size-Overall**74%
**Advertised Vs Actual Product**3%
**Material Quality**3%
**Inflation/Deflation**3%
**Quality-Overall**2%
**Value For Money**2%
**Adhesion/Stickiness**2%
**Thin**2%
**Stitch/Finish/Polish**2%
**Defective Material/Parts**2%
## **Common questions**
- **Is stone age costume boys profitable to sell on Amazon United Kingdom?**
- The niche generates £18K/yr across 36 tracked products. 0 of 8 products launched in the last 360 days are still selling. 90-day search growth is -40.9%. Flapen's verdict: Skip it (40/100).
- **How competitive is the stone age costume boys niche?**
- 19 brands and 30 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in stone age costume boys?**
- Top complaints mined from reviews: Quality-Overall, Value For Money, Durability. The return rate is 4.6%.
- **What does it cost to enter the stone age costume boys niche?**
- Listings span £3.30–£66.37; the average listing price is £14.68 (sweet spot $15–$100). The average incumbent carries 156 reviews — the moat a new listing must climb.
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