---
title: "Marshmello Costume Kids Boys — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/marshmello-costume-kids-boys"
last_updated: "2026-08-12T17:27:11.931Z"
locale: en
meta:
description: "Amazon product research for marshmello costume kids boys: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for marshmello costume kids boys: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Marshmello Costume Kids Boys — Amazon US Product Research"
---
# **Marshmello Costume Kids Boys**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 13Conversion 0Competition 83Returns 48Price range 83Avg price 95Brand share 27Review moat 88Quality gap 67
**Avg price**
**Incredible****$41.01**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****246.36**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Great****32%**
top-5 click share — an open shelf
**Price range**
**Great****$5.64–$70.00**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****3.2%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****89%**
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**
**Bad****0.0%**
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 ~~](https://flapen.com/research/methodology)
## **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.
35K25KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 92.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/marshmello-costume-kids-boys/trend)
## **Top marshmello costume kids boys search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **marshmello costume**19K/yr+9.2%0.3% conv. - **dj marshmello**7K/yr-12.7%0.4% conv. - **marshmello costume kids**44K/yr-57.2%0.0% conv. - **dj marshmello costume**3K/yr+8.4%0.0% conv. - **dj marshmello costume kids**14K/yr-65.1%0.5% conv. - **dj marshmallow costume**6K/yr-52.5%0.0% conv. - **kids marshmello costume**4K/yr+26.7%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/marshmello-costume-kids-boys/search-terms)
## **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.
0%3%$06%$09%$012%$01101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$6.54**4.4★3,170 rev](https://www.amazon.com/dp/B08ZHMZXVS) [2**Spirit Halloween Kids Marshmello Jacket**Spirit Halloween**$43.72**4.5★131 rev](https://www.amazon.com/dp/B08BGZ9YVS) [3**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**$18.59**4.1★51 rev](https://www.amazon.com/dp/B0FNCLFZM8) [4**Marshmello - Youth - Smile T-Shirt - Unisex White**Marshmello**$37.16**4.5★405 rev](https://www.amazon.com/dp/B07RBCVTSC) [5**DALEDWN Led Gloves 5 Colors 6 Modes Light up Gloves Rave Finger Light Flashing Gloves Cool Fun Toys (M)**DALEDWN**$5.64**4.4★594 rev](https://www.amazon.com/dp/B09VP539ZJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Marshmello - Mello Helmet Keychain**Marshmello**$24.89**1 rev9mo ago](https://www.amazon.com/dp/B0FS928K19) [**Marshmello - Youth Smile Hoodie Unisex Fit Pouch Pocket Preshrunk Carolina Blue**Marshmello**$57.23**18 rev10mo ago](https://www.amazon.com/dp/B0FML62538) [**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**$18.59**51 rev1y ago](https://www.amazon.com/dp/B0FNCLFZM8) [**Marshmello - Adult Smile T-Shirt - Unisex 100% Preshrunk Cotton Periwinkle**Marshmello**$34.74**10 rev1y ago](https://www.amazon.com/dp/B0DQLTM7VS) [**Marshmello - Kids Smile Hoodie Black Cotton Blend Sweatshirt with Tie Dye Print**Marshmello**$60.00**18 rev1y ago](https://www.amazon.com/dp/B0DJRSYTZX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Marshmello - Kids Smile Hoodie Black Cotton Blend Sweatshirt with Tie Dye Print**Marshmello**$60.00**4.5★**▲ 564%**](https://www.amazon.com/dp/B0DJRSYTZX) [**Marshmello - Youth Smile Hoodie Unisex Fit Pouch Pocket Preshrunk (US Alpha Medium Regular Black Tie Dye Smile)**Marshmello**$57.44**4.5★**▲ 558%**](https://www.amazon.com/dp/B0DJRSF7H5) [**Marshmello - Smile T-Shirt - Unisex (US Alpha XX-Large Regular Regular White)**Marshmello**$39.89**4.3★**▲ 545%**](https://www.amazon.com/dp/B0DCHBTSJ6) [**Marshmello - Smile T-Shirt Tie Dye - Unisex**Marshmello**$44.70**4.3★**▲ 534%**](https://www.amazon.com/dp/B0DCLXC42S) [**Marshmello - Smile T-Shirt Tie Dye - Unisex**Marshmello**$45.00**4.3★**▲ 517%**](https://www.amazon.com/dp/B0DCM6MX9J)
**~~View all trending →~~**
## **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/Entertainment Experience**30%
*“Fun for kids”*
**Gifting Purpose**10%
*“Christmas gift for my grandson”*
**Quality-Overall**9%
*“Good quality, lights worked, my child loved it”*
**Value For Money**7%
*“worth the price”*
**Size-Overall**6%
*“the size to move easily”*
**Brightness/Shine/Glow**4%
*“providing great brightness”*
**Color**4%
*“the colors are so bright”*
**Music Effect**3%
*“Great for encouraging creativity and music play”*
**Audio Quality**3%
*“Sound is great”*
**Ease Of Use**2%
*“easy to use”*
### **What buyers complain about **
**Durability**23%
*“Broke Immediately”*
**Quality-Overall**10%
*“beware, they are of low quality”*
**Instructions/User Manual/Troubleshooting**7%
*“No instructions”*
**Ease Of Cleaning**5%
*“This item came disgustingly dirty”*
**Noise Level**5%
*“It gets very loud for it the size that it is”*
**Size-Overall**4%
*“does not fit me”*
**Battery Inclusion**3%
*“came with no extra batteries on top of the battery pack coming ripped the box came open”*
**Audio Quality**3%
*“no audio”*
**Smell**3%
*“Battery make it smelly”*
**Functionality-Overall**3%
*“Did not work :”*
### **Top return reasons **
**Size-Overall**23%
**Functionality-Overall**19%
**Audio Quality**6%
**Defective Material/Parts**5%
**Advertised Vs Actual Product**5%
**Battery Inclusion**5%
**Value For Money**4%
**Connectivity-Overall**3%
**Product Condition**3%
**Quality-Overall**3%
## **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.
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