Marshmello Costume Kids Boys
Skip itA small market ($0/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$41.01avg listing price — sweet spot $15–$100
Review moat
Great246.36avg incumbent reviews — the moat a new listing must climb
Competition
Great32%top-5 click share — an open shelf
Price range
Great$5.64–$70.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Okay3.2%return rate — above 5% kills the launch gate
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Growth
Bad-24.1%90-day search growth — must beat 0% to launch
Market size
Bad$0$0/yr · 97K searches
Conversion
Bad0.0%search→purchase rate — share of searches ending in a sale
Is marshmello costume kids boys profitable on Amazon?
According to Flapen's Amazon United States niche tracking, marshmello costume kids boys is a $0/yr Amazon United States market (97K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 42/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
marshmello costume kids boys market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $51K–$62K
- units × avg price
- Conversion rate
- 0.0%
- Avg BSR
- #63,300
- Page quality
- 0%
- Prime
- 41%
- Sponsored
- 75%
- Out of stock
- 15.2%
- Avg brand age
- 49 months
- Avg seller age
- 175 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
11 flat
Sellers
41
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
32%
Top 20: 66%
Open market
7%
- Marshmello48%
- Spirit Halloween18%
- GLEDLOVES9%
- InSpirit Designs7%
- OMULIKJ6%
- JIAHHAI4%
- Open — no brand owns it (5 brands, 7%)
marshmello costume kids boys demand & seasonality
Weekly Amazon search volume, last 104 weeks — -24.1% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 92.7×
Top marshmello costume kids boys search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- marshmello costume19K/yr
- dj marshmello7K/yr
- marshmello costume kids44K/yr
- dj marshmello costume3K/yr
- dj marshmello costume kids14K/yr
- dj marshmallow costume6K/yr
- kids marshmello costume4K/yr
Top marshmello costume kids boys 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
GLEDLOVES LED Gloves for Kids Teens & Adults - Finger Light Gloves with 5 Colors/6 Modes - Perfect for 9-12 Year Old Boys & Girls - Ideal for Halloween & Christmas Parties
GLEDLOVES$6.544.4★3,170 rev
Spirit Halloween Kids Marshmello Jacket
Spirit Halloween$43.724.5★131 rev
OMULIKJ Halloween LED DJ Mask Music Festival Halloween Party Christmas Costumes Cosplay Light Up Full Head Mask Helmet Toys Suitable For Men And Women Party Supplies
OMULIKJ$18.594.1★51 rev
Marshmello - Youth - Smile T-Shirt - Unisex White
Marshmello$37.164.5★405 rev
DALEDWN Led Gloves 5 Colors 6 Modes Light up Gloves Rave Finger Light Flashing Gloves Cool Fun Toys (M)
DALEDWN$5.644.4★594 rev
Newest
by launch date
Marshmello - Mello Helmet Keychain
Marshmello$24.891 rev
Marshmello - Youth Smile Hoodie Unisex Fit Pouch Pocket Preshrunk Carolina Blue
Marshmello$57.2318 rev
OMULIKJ Halloween LED DJ Mask Music Festival Halloween Party Christmas Costumes Cosplay Light Up Full Head Mask Helmet Toys Suitable For Men And Women Party Supplies
OMULIKJ$18.5951 rev
Marshmello - Adult Smile T-Shirt - Unisex 100% Preshrunk Cotton Periwinkle
Marshmello$34.7410 rev
Marshmello - Kids Smile Hoodie Black Cotton Blend Sweatshirt with Tie Dye Print
Marshmello$60.0018 rev
Trending
90-day click momentumMarshmello - Kids Smile Hoodie Black Cotton Blend Sweatshirt with Tie Dye Print
Marshmello$60.004.5★
Marshmello - Youth Smile Hoodie Unisex Fit Pouch Pocket Preshrunk (US Alpha Medium Regular Black Tie Dye Smile)
Marshmello$57.444.5★
Marshmello - Smile T-Shirt - Unisex (US Alpha XX-Large Regular Regular White)
Marshmello$39.894.3★
Marshmello - Smile T-Shirt Tie Dye - Unisex
Marshmello$44.704.3★
Marshmello - Smile T-Shirt Tie Dye - Unisex
Marshmello$45.004.3★
What reviews say buyers love and hate about marshmello costume kids boys
What buyers praise and complain about, mined from review topics.What buyers love
“Fun for kids”
“Christmas gift for my grandson”
“Good quality, lights worked, my child loved it”
“worth the price”
“the size to move easily”
“providing great brightness”
“the colors are so bright”
“Great for encouraging creativity and music play”
“Sound is great”
“easy to use”
What buyers complain about
“Broke Immediately”
“beware, they are of low quality”
“No instructions”
“This item came disgustingly dirty”
“It gets very loud for it the size that it is”
“does not fit me”
“came with no extra batteries on top of the battery pack coming ripped the box came open”
“no audio”
“Battery make it smelly”
“Did not work :”
Top return reasons
Common marshmello costume kids boys questions
- Is marshmello costume kids boys profitable to sell on Amazon United States?
- The niche generates $0/yr across 56 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -24.1%. Flapen's verdict: Skip it (42/100).
- How competitive is the marshmello costume kids boys niche?
- 11 brands and 41 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in marshmello costume kids boys?
- Top complaints mined from reviews: Durability, Quality-Overall, Instructions/User Manual/Troubleshooting. The return rate is 3.2%.
- When does demand for marshmello costume kids boys peak?
- Demand peaks in Sep–Oct; the busiest month runs 92.7× the quietest.
- What does it cost to enter the marshmello costume kids boys niche?
- Listings span $5.64–$70.00; the average listing price is $41.01 (sweet spot $15–$100). The average incumbent carries 246 reviews — the moat a new listing must climb.