Mario Costume Kids
Skip itHigh returns (7.7%) — 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
Conversion
Bad1.3%search→purchase rate — share of searches ending in a sale
Returns
Bad7.7%return rate — above 5% kills the launch gate
Is mario costume kids profitable on Amazon?
According to Flapen's Amazon United States niche tracking, mario costume kids is a $192K/yr Amazon United States market (567K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 48/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
mario costume kids market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- $161K–$215K
- units × avg price
- Conversion rate
- 1.3%
- Avg BSR
- #834
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 70%
- Out of stock
- 15.1%
- Avg brand age
- 32 months
- Avg seller age
- 165 days
Competition: brands, sellers & click share
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%
Top 20: 100%
Top-5 click share
40%
Top 20: 80%
Open market
11%
- Disguise36%
- Mavoka17%
- Nintendo15%
- Get Trend10%
- ELEGAWHISPR7%
- Komar Kids4%
- Open — no brand owns it (7 brands, 11%)
mario costume kids 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×
Top mario costume kids search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- mario costume kids326K/yr
- disfraz de mario bros para nio33K/yr
- traje de mario bros para nio17K/yr
- super mario costume kids47K/yr
- kids mario costume23K/yr
- mario kids costume14K/yr
- disfraz mario bros nio8K/yr
- mario custom kids6K/yr
- mario bros costume kids9K/yr
- mario and luigi costume kids27K/yr
Top mario costume kids products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.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
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
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
VINUOKER Baby Boy Outfits Baby Boy Brother Matching Outfits Set
VINUOKER$28.2432 rev
ELEGAWHISPR Halloween Costume Kids Plumber Jumpsuit with Hat Gloves Moustache Accessories Set (Red Medium(7-8 Years))
ELEGAWHISPR$30.9095 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★
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 Super Mario Bomber Jacket for Boys Mario and Luigi Bomber Jacket (Bros. Blue Size 5/6)
Nintendo$40.534.8★
Mavoka Plumber Costume for Kids Shirt Overalls Glove Boys Halloween Party Cosplay 7-8 Years Green
Mavoka$23.294.4★
VINUOKER Baby Boy Outfits Baby Boy Brother Matching Outfits Set
VINUOKER$28.244.5★
What reviews say buyers love and hate about mario costume kids
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”
Top return reasons
Common mario costume kids questions
- Is mario costume kids profitable to sell on Amazon United States?
- The niche generates $192K/yr across 40 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +31.9%. Flapen's verdict: Skip it (48/100).
- How competitive is the mario costume kids niche?
- 13 brands and 69 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in mario costume kids?
- Top complaints mined from reviews: Size-Overall, Product Condition, Material Quality. The return rate is 7.7% — above our launch gate.
- When does demand for mario costume kids peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 24.7× the quietest.
- What does it cost to enter the mario costume kids niche?
- Listings span $11.01–$47.01; the average listing price is $26.90 (sweet spot $15–$100). The average incumbent carries 1,020 reviews — the moat a new listing must climb.