rat costume
Skip itSoft demand (-52.5% this quarter) — this niche doesn't clear our bar today.
Review moat
Incredible63.44avg incumbent reviews — the moat a new listing must climb
Avg price
Great£16.21avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Brand share
Good66%top-5 brand share — brands hold most of the demand
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Price range
Good£4.55–£33.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.9%return rate — above 5% kills the launch gate
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Market size
Bad£54K£54K/yr · 121K searches
Growth
Bad-52.5%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, rat costume is a £54K/yr Amazon United Kingdom market (121K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Mar–Oct–Nov. Verdict: Skip it — 47/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
rat costume market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- £41K–£49K
- units × avg price
- Conversion rate
- 2.8%
- Avg BSR
- #1,333
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 88%
- Out of stock
- 11.5%
- Avg brand age
- 38 months
- Avg seller age
- 194 days
Competition & brand share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
21 rising
Sellers
39
Top-5 brand share
66%
Top 20: 99%
Top-5 click share
47%
Top 20: 86%
Open market
30%
- HEWERON38%
- Yeffute8%
- Mcdslrgo7%
- SKHAOVS7%
- HENBRANDT6%
- TSHAOUN5%
Demand & seasonality
Weekly Amazon search volume, last 86 weeks — -52.5% search growth over the last 90 days.Peak months: Mar, Oct, Nov · busiest ÷ quietest = 12.4×
Top rat costume search terms
- rat costume29K/yr
- mouse costume26K/yr
- ratatouille costume31K/yr
- mouse costume kids17K/yr
- rat costume kids4K/yr
- rat costume adult6K/yr
- mouse costume adult8K/yr
Top rat 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.654.7★9 rev
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.714.7★9 rev
Yeffute Inflatable Mouse Costume for Adult Blow up Mouse Costume Funny Halloween Party Cosplay Costume Suit (Grey)
Yeffute£24.724.4★101 rev
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.294.7★9 rev
Mcdslrgo Unisex-Adult Christmas Onesie Pajamas Halloween Cosplay Costume
Mcdslrgo£19.624.4★87 rev
Newest
by launch date
HeHeGe Mouse Costume Set Grey Mouse Ears Tail Nose and Bow Tie Cartoon Animal World Book Day Cosplay Accessory Halloween Dress Up
HeHeGe£8.050 rev
EDLMKM 5 Pcs Rat Theme Makeup Costume Animal Mouse Costume Accessory Set Grey Animal Nose Ears Headband Bow Tie Tail Tutu Skirt for Christmas Carnival World Book Day Cosplay Dress Party Supplies
EDLMKM£8.691 rev
AOOWU Mouse Costume Set for Kids 7PCS Animal Costume Set Tutu Skirt with Mouse Headband Tail Bow Tie Nose Gloves Mouse Animal Fancy Dress Costume for Halloween Theme Party Cosplay
AOOWU£7.5913 rev
Xryhze Inflatable Mouse Costume Adult Size Air Blow up Rat Costume for Halloween Cosplay Party Dress Full Body Outfit (Grey)
Xryhze£22.554 rev
iZoeL Chef Mouse Costume Couples Adults & Women Fancy Dress with Apron Chef Hat Wooden Spoon Mouse Ears Headband Tail Nose Bow Tie Rat Outfit
iZoeL£14.174 rev
Trending
90-day click momentumHeHeGe Mouse Costume Set Grey Mouse Ears Tail Nose and Bow Tie Cartoon Animal World Book Day Cosplay Accessory Halloween Dress Up
HeHeGe£8.050.0★
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.654.7★
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.294.7★
Funidelia | Rat Costume for men and women Animals - Costume for adults accessory fancy dress & props for Halloween carnival & parties - Size L - XL - Grey/Silver
Funidelia£33.844.5★
HEWERON Mouse Onesie Adult Rat Costume Halloween Animals Cosplay Pajamas Cartoon Warm Sleepwear Women Men
HEWERON£24.714.7★
What buyers say about rat costume
What buyers praise and complain about, mined from review topics.What buyers love
“This is a super fun”
“Size was fine”
“Great quality and great price”
“This inflatable mouse costume is great, it comes with its own air pump and battery pack and once inflated looks absolutely amazing”
“Great value for money”
“like in pictures”
“held the shape really well”
“it was straightforward to use”
“The material feels lightweight yet durable”
“Fastens with a zip at the back easier with help”
What buyers complain about
“Quality isnt great, thin”
“Sizes big”
“I'm not sure if its worth the money tbh”
“Dont go off the photos”
“Does make noise when fan is on”
“It is quite bulky once it's on so probably not ideal for tight spaces”
Top return reasons
Common questions
- Is rat costume profitable to sell on Amazon United Kingdom?
- The niche generates £54K/yr across 32 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -52.5%. Flapen's verdict: Skip it (47/100).
- How competitive is the rat costume niche?
- 21 brands and 39 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 66% of demand.
- What do buyers complain about in rat costume?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Value For Money. The return rate is 2.9%.
- When does demand for rat costume peak?
- Demand peaks in Mar–Oct–Nov; the busiest month runs 12.4× the quietest.
- What does it cost to enter the rat costume niche?
- Listings span £4.55–£33.84; the average listing price is £16.21 (sweet spot $15–$100). The average incumbent carries 63 reviews — the moat a new listing must climb.