mario costume kids
Skip itSoft demand (-88.4% this quarter) — this niche doesn't clear our bar today.
Avg price
Good£14.62avg listing price — sweet spot $15–$100
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Review moat
Good832.17avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Price range
Good£7.95–£26.15cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good3.0%return rate — above 5% kills the launch gate
Conversion
Okay2.6%search→purchase rate — share of searches ending in a sale
Brand share
Bad95%top-5 brand share — brand-locked demand
Market size
Bad£38K£38K/yr · 101K searches
Growth
Bad-88.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, mario costume kids is a £38K/yr Amazon United Kingdom market (101K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Mar–Oct. Verdict: Skip it — 38/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
mario costume kids market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- £29K–£37K
- units × avg price
- Conversion rate
- 2.6%
- Avg BSR
- #699
- Page quality
- 0%
- Prime
- 79%
- Sponsored
- 66%
- Out of stock
- 15.4%
- Avg brand age
- 35 months
- Avg seller age
- 187 days
Competition & brand share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
9 rising
Sellers
47
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
44%
Top 20: 92%
Open market
4%
- Super Mario39%
- Disguise28%
- BSBUY17%
- HENBRANDT8%
- Kitimi3%
- DiULi2%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 72 weeks — -88.4% search growth over the last 90 days.Peak months: Mar, Oct · busiest ÷ quietest = 31.2×
Top mario costume kids search terms
- mario costume kids60K/yr
- super mario costume kids21K/yr
- kids mario costume13K/yr
- mario kids costume8K/yr
Top mario costume 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Disguise Mario Fancy Dress Intl
Disguise£16.734.6★555 rev
BSBUY Kids Super Plumber Costume Super Workman Fancy Dress Costume Moustache Brothers Outfit Super Bro Jumpsuit with Cap Beard and Gloves for Boys Girls Halloween Birthday Christmas Cosplay(Red-M)
BSBUY£8.443.9★163 rev
Disguise Nintendo Super Mario Mario Jumpsuit for Kids Officially Licensed Includes Mario Hat Mario Fancy Dress for Kids Jumpsuit and Moustache Ages 7-8
Disguise£14.784.6★555 rev
Super Mario Onesie | Onesies for Boys | Fleece Pyjamas for Kids Multicoloured 7-8 Years
Super Mario£21.604.7★1,726 rev
BSBUY Kids Super Plumber Costume Super Workman Fancy Dress Costume Moustache Brothers Outfit Super Bro Jumpsuit with Cap Beard and Gloves for Boys Girls Halloween Birthday Christmas Cosplay(Red-S)
BSBUY£8.733.9★163 rev
Newest
by launch date
Super Mario Bomber Jacket Mario Luigi Bowser And Yoshi Boys Jacket Varsity Boys Jackets 9-10 Years
Super Mario£20.1216 rev
BSBUY Kids Super Plumber Costume Super Workman Fancy Dress Costume Moustache Brothers Outfit Super Bro Jumpsuit with Cap Beard and Gloves for Boys Girls Halloween Birthday Christmas Cosplay(Red-M)
BSBUY£8.44163 rev
BSBUY Kids Super Plumber Costume Super Workman Fancy Dress Costume Moustache Brothers Outfit Super Bro Jumpsuit with Cap Beard and Gloves for Boys Girls Halloween Birthday Christmas Cosplay(Red-S)
BSBUY£8.73163 rev
Super Bro Costume Kids Super Workman Fancy Dress Costume Set Kids Plumber Costumes with Red Top Dungarees Hat Mustaches Gloves Brooch Carnival Halloween Cosplay Costumes for Boys and GirlsXL
Kitimi£14.2610 rev
DiULi 4 PCS Yellow Halloween Costume Accessories Set Cosplay Fun Party Costume Cute Costume World Book Day Childrens Costume Including Hat Two Eyes Steampunk Goggles Gloves Strap Clips
DiULi£7.9582 rev
Trending
90-day click momentumSuper Mario Bomber Jacket Mario Luigi Bowser And Yoshi Boys Jacket Varsity Boys Jackets 9-10 Years
Super Mario£20.124.6★
DiULi 4 PCS Yellow Halloween Costume Accessories Set Cosplay Fun Party Costume Cute Costume World Book Day Childrens Costume Including Hat Two Eyes Steampunk Goggles Gloves Strap Clips
DiULi£7.954.0★
Super Mario Swimsuit for Boys | Blue Green Two Piece Top & Shorts Bathing Suit | Kids Gamer UV50+ Sun Safe Swimming Costume 5-6 Years
Super Mario£16.194.6★
Super Mario Boys Pyjamas Grey 4-5 Years
Super Mario£9.624.6★
Super Mario Swimsuit for Boys | Blue Green Two Piece Top & Shorts Bathing Suit | Kids Gamer UV50+ Sun Safe Swimming Costume 3-4 Years
Super Mario£15.634.6★
What buyers say about mario costume kids
What buyers praise and complain about, mined from review topics.What buyers love
“these fit great”
“Good quality”
“Cant really complain at the price - excellent product for Halloween or parties”
“comfortable for my son”
“Material thickness is fine”
“Washes well”
“kids are very easily thrilled”
What buyers complain about
“comes up to small”
“Poor quality”
“Not impressed for the amount it cost”
“Disappointing, cheap material and does not come with the gloves or moustache, so picture is a little miss leading”
“already the seam has split”
“Bottom part tighter than expected”
“very thin material”
“Next day a hole right be the zip”
“Felt a bit cheap fabric n quality n fasteners for dungarees not the best difficult for kids”
“moustache didnt stick at all”
Top return reasons
Common questions
- Is mario costume kids profitable to sell on Amazon United Kingdom?
- The niche generates £38K/yr across 29 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -88.4%. Flapen's verdict: Skip it (38/100).
- How competitive is the mario costume kids niche?
- 9 brands and 47 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in mario costume kids?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 3.0%.
- When does demand for mario costume kids peak?
- Demand peaks in Mar–Oct; the busiest month runs 31.2× the quietest.
- What does it cost to enter the mario costume kids niche?
- Listings span £7.95–£26.15; the average listing price is £14.62 (sweet spot $15–$100). The average incumbent carries 832 reviews — the moat a new listing must climb.