mario costume kids
Skip itWeak search conversion (1.3%) — this niche doesn't clear our bar today.
Avg price
Incredible$26.90avg listing price — sweet spot $15–$100
Price range
Great$11.01–$47.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great40%top-5 click share — an open shelf
Review moat
Good1,020.4avg incumbent reviews — the moat a new listing must climb
Growth
Good+31.9%90-day search growth — must beat 0% to launch
Market size
Okay$192K$192K/yr · 567K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Returns
Bad7.7%return rate — above 6% kills the launch gate
Conversion
Bad1.3%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.Brands
13 rising
Sellers
69
Top-5 brand share
85%
Open market
11%
- Disguise36%
- Mavoka17%
- Nintendo15%
- Get Trend10%
- ELEGAWHISPR7%
- Komar Kids4%
- Open — no brand owns it (7 brands, 11%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 40 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)
Get Trend$25.064.7★146 rev
Disguise Nintendo Super Mario Costume Officially Licensed Super Mario Brothers Boys Costume Classic Child Size Medium (7-8)
Disguise$26.144.6★7,924 rev
Disguise Nintendo Super Mario Costume Officially Licensed Super Mario Brothers Boys Costume Classic Child Size Small (4-6)
Disguise$29.534.6★7,924 rev
Plumber Costume for Kids Shirt Overalls Glove Boys Halloween Party Cosplay 3T Red
Mavoka$20.344.4★91 rev
ELEGAWHISPR Halloween Costume Kids Plumber Jumpsuit with Hat Gloves Moustache Accessories Set (Red Medium(7-8 Years))
ELEGAWHISPR$30.904.6★95 rev
Newest
by launch date
GVVJYXD Red and Green Hat Costume Accessories Halloween Women Mens Kit with Hat Mustaches Suspenders Gloves Buttons Adult(Red)
GVVJYXD$15.2324 rev
Nintendo Boys 2-Piece Loose-fit Button Down Matching Pajama Set Soft & Cute for Kids MARIO PARTY PALS 8
Nintendo$20.7718 rev
CGD Super Bros Costume Set with Hat Mustache Suspenders for Halloween Instant Dress Up Kit for Cosplay & Christmas
CGD$19.8545 rev
Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)
Get Trend$25.06146 rev
QRT Super Bros Costume Kit with Hat Mustaches Suspenders Gloves Buttons ang Glasses frame for Halloween Cosplay and Christmas (red&green)
QRT$22.71140 rev
Trending
90-day click momentum
Nintendo Super Mario Brothers Boys Long Sleeve Onesie Zip Coverall with Hoodie Luigi Cosplay Zip Up Onesie for Kids (Green and Blue Size 14/16)
Nintendo$38.574.8★
ADREIT Boys Halloween Costumes Red Suits Kids Movie Cosplay Dress Up
ADREIT$21.794.9★
Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)
Get Trend$25.064.7★
Nintendo Boys 2-Piece Loose-fit Button Down Matching Pajama Set Soft & Cute for Kids MARIO PARTY PALS 8
Nintendo$20.774.5★
Nintendo Super Mario Bomber Jacket for Boys Mario and Luigi Bomber Jacket (Bros. Blue Size 5/6)
Nintendo$40.534.8★
Demand & seasonality
Weekly Amazon search volume, last 79 weeks — +31.9% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 24.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“they fit me pretty well”
“Good quality”
“Great value for the money”
“Simple”
“are very comfortable”
“it also adds versatility since you can get creative with your outfit design”
“the suspenders adjust easily”
“The colors are bright”
“Just as advertised”
“the materials feel sturdy enough for a night of trick-or-treating or multiple wears”
What buyers complain about
“it was very small”
“It looks previously used”
“The material is awful and so thin”
“I just assumed since it was a little expensive that it would be a higher quality costume”
“Broke right away”
“Not good quality at all”
“Does not come with the white gloves pictured so its a bit misleading”
“the pair I did receive were dirty”
“It doesn't work”
“Much thicker than expected”