---
title: "rosalina costume kids — Niche Verdict: Worth a look (57/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/rosalina-costume-kids"
last_updated: "2026-07-13T23:32:02.231Z"
locale: en
meta:
  description: "rosalina costume kids shows demand growing +240.9% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "rosalina costume kids shows demand growing +240.9% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "rosalina costume kids — Niche Verdict: Worth a look (57/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **rosalina costume kids**

**Worth a look**

Shows demand growing +240.9% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 10Growth 98Conversion 16Competition 38Returns 77Price range 95Avg price 95Brand share 47Review moat 97Quality gap 65

**Growth**

**Incredible****+240.9%**

90-day search growth — must beat 0% to launch

**Review moat**

**Incredible****64.33**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Incredible****$33.49**

avg listing price — sweet spot $15–$100

**Price range**

**Incredible****$24.01–$40.66**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Returns**

**Great****1.9%**

return rate — above 6% kills the launch gate

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Okay****77%**

top-5 brand share — brands hold most of the demand

**Competition**

**Okay****62%**

top-5 click share — leaders hold, buyers still browse

**Conversion**

**Bad****1.3%**

search→purchase rate — share of searches ending in a sale

**Market size**

**Bad****$41K**

$41K/yr · 96K searches

## **Competition**

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**13 **▲rising

**Sellers**

**24**

**Top-5 brand share**

**77%**

**Open market**

**18%**

- The Super Mario Galaxy Movie34% - Szytypyl15% - Binbo12% - Anjite9% - Mukola8% - ZIW6% - Open — no brand owns it (7 brands, 18%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$4K20%$8K30%$12K40%$16K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 18 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![The Super Mario Galaxy Movie Girls Fantasy Gown Nightgown ROSALINA FANTASY GOWN 3T](https://m.media-amazon.com/images/I/51yxeubVvRL.jpg)**The Super Mario Galaxy Movie Girls Fantasy Gown Nightgown ROSALINA FANTASY GOWN 3T**The Super Mario Galaxy Movie**$24.01**4.9★34 rev](https://www.amazon.com/dp/B0GLRCTXLP) [2![Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green](https://m.media-amazon.com/images/I/41I1KP+C8nL.jpg)**Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green**Szytypyl**$39.60**4.9★27 rev](https://www.amazon.com/dp/B0GW842G8T) [3![Binbo Princess Rosalian Costume Dress kids Grils Halloween Cosplay Birthday Party Outfit 5-6Y](https://m.media-amazon.com/images/I/51Z-19M6KuL.jpg)**Binbo Princess Rosalian Costume Dress kids Grils Halloween Cosplay Birthday Party Outfit 5-6Y**Binbo**$35.43**4.8★26 rev](https://www.amazon.com/dp/B0GVDVBBKW) [4![Mukola Kids Princess Costume Girls Galaxy Movie Off Shoulder Fancy Dress with Crown Wand Accessories Cosplay Party](https://m.media-amazon.com/images/I/41wrdK22zUL.jpg)**Mukola Kids Princess Costume Girls Galaxy Movie Off Shoulder Fancy Dress with Crown Wand Accessories Cosplay Party**Mukola**$35.29**3.9★15 rev](https://www.amazon.com/dp/B0GSZGGG4S) [5![ZIW Princess Rosalina Costume Kids Girls Blue Dress with Wig Wand Crown Earrings Plush Galaxy Princess Outfit for Halloween Party Dress Up ZW264L](https://m.media-amazon.com/images/I/41nOlEISvKL.jpg)**ZIW Princess Rosalina Costume Kids Girls Blue Dress with Wig Wand Crown Earrings Plush Galaxy Princess Outfit for Halloween Party Dress Up ZW264L**ZIW**$39.69**4.5★14 rev](https://www.amazon.com/dp/B0GTMF9X8G)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Anjite Girls Galaxy Princess Rosalina Costume Kids Royal Dress Up with Teal Maxi Dress Wig Crown Wand Earrings for Halloween AJ097L](https://m.media-amazon.com/images/I/418bngttGoL.jpg)**Anjite Girls Galaxy Princess Rosalina Costume Kids Royal Dress Up with Teal Maxi Dress Wig Crown Wand Earrings for Halloween AJ097L**Anjite**$40.66**8 rev2mo ago](https://www.amazon.com/dp/B0GZWNJZ2N) [![Girls Princess Rosalina Costume Dress with Accessories Blue Princess Dress with Wig Wand Crown Earrings and Star Earrings AJ081M](https://m.media-amazon.com/images/I/41ijUp8xPRL.jpg)**Girls Princess Rosalina Costume Dress with Accessories Blue Princess Dress with Wig Wand Crown Earrings and Star Earrings AJ081M**Anjite**$36.96**3 rev2mo ago](https://www.amazon.com/dp/B0GY89M86X) [![ZENGOR CENDA Halloween Costume For Girls Toddler Galaxy Princess Dress Up With Accessories Birthday Party Outfits](https://m.media-amazon.com/images/I/31ktkI8n7uL.jpg)**ZENGOR CENDA Halloween Costume For Girls Toddler Galaxy Princess Dress Up With Accessories Birthday Party Outfits**ZENGOR CENDA**$33.83**22 rev2mo ago](https://www.amazon.com/dp/B0GY9CSFMJ) [![Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green](https://m.media-amazon.com/images/I/41I1KP+C8nL.jpg)**Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green**Szytypyl**$39.60**27 rev3mo ago](https://www.amazon.com/dp/B0GW842G8T) [![Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green](https://m.media-amazon.com/images/I/41I1KP+C8nL.jpg)**Szytypyl Princess Rosalina Costume for Girls One Shoulder Fancy Dress Gowns with Accessories Green**Szytypyl**$38.94**27 rev3mo ago](https://www.amazon.com/dp/B0GW87885M)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Mukola Kids Princess Costume Girls Galaxy Movie Off Shoulder Fancy Dress with Crown Wand Accessories Cosplay Party](https://m.media-amazon.com/images/I/41wrdK22zUL.jpg)**Mukola Kids Princess Costume Girls Galaxy Movie Off Shoulder Fancy Dress with Crown Wand Accessories Cosplay Party**Mukola**$35.38**3.9★**▲ 35%**](https://www.amazon.com/dp/B0GSZ9TYLY) [![ABHOH Princess Rosalina Costume Kids Girls Star Galaxy Dress with Accessories Celestial Outfit Wand Crown Earrings Plush Set for Birthday Halloween Dress Up AB026L](https://m.media-amazon.com/images/I/41M9+HNVXbL.jpg)**ABHOH Princess Rosalina Costume Kids Girls Star Galaxy Dress with Accessories Celestial Outfit Wand Crown Earrings Plush Set for Birthday Halloween Dress Up AB026L**ABHOH**$34.13**4.2★**▲ 34%**](https://www.amazon.com/dp/B0GTMPW7R9) [![IDOTTA Girls Princess Costume for Kids Cosplay Fancy Dress up with Crown Magic Wand](https://m.media-amazon.com/images/I/41YB5Vp+QjL.jpg)**IDOTTA Girls Princess Costume for Kids Cosplay Fancy Dress up with Crown Magic Wand**IDOTTA**$26.99**2.0★**▲ 34%**](https://www.amazon.com/dp/B0G2PQQK7D) [![ZENGOR CENDA Halloween Costume For Girls Toddler Galaxy Princess Dress Up With Accessories Birthday Party Outfits](https://m.media-amazon.com/images/I/31ktkI8n7uL.jpg)**ZENGOR CENDA Halloween Costume For Girls Toddler Galaxy Princess Dress Up With Accessories Birthday Party Outfits**ZENGOR CENDA**$33.83**4.4★**▲ 34%**](https://www.amazon.com/dp/B0GY9CSFMJ) [![Anjite Girls Galaxy Princess Rosalina Costume Kids Royal Dress Up with Teal Maxi Dress Wig Crown Wand Earrings for Halloween AJ097L](https://m.media-amazon.com/images/I/418bngttGoL.jpg)**Anjite Girls Galaxy Princess Rosalina Costume Kids Royal Dress Up with Teal Maxi Dress Wig Crown Wand Earrings for Halloween AJ097L**Anjite**$40.66**4.7★**▲ 34%**](https://www.amazon.com/dp/B0GZWNJZ2N)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +240.9% search growth over the last 90 days.

6K4KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Apr, May, Sep, Oct · busiest ÷ quietest = 17.9×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**29%

*“AMAZING QUALITY”*

**Size-Overall**27%

*“My daughter told me the size for the age was very accurate she also remarked about the quality of the costume was very good for the price”*

**Material Quality**7%

*“Durable material and very reliable”*

**Value For Money**5%

*“Overall I thought the costume was well priced”*

**Durability**4%

*“The fabric feels nicer than many children's costumes, and the stitching and overall construction seem durable enough to hold up to repeated dress-up sessions”*

**Soft Feel**4%

*“Silky Dress”*

**Color**3%

*“The color is great”*

**Design-Overall**2%

*“help complete the look”*

**Add-Ons/Attachments**2%

*“Includes fun accessories”*

**Ease Of Use**2%

*“It is easy to put on”*

### **What buyers complain about **

**Size-Overall**32%

*“I did get it a little too big because kids grow fast”*

**Brightness/Shine/Glow**18%

*“gets glitter everywhere”*

**Advertised Vs Actual Product**8%

*“Inaccurate picture”*

**Durability**5%

*“gems fell off easy”*

**Value For Money**5%

*“Waste of time and money”*

**Stretchability/Expandability/Elasticity**3%

*“- Material is not stretchy”*

**Quality-Overall**3%

*“Very bad quality”*

**Strength**3%

*“Flimsy”*

### **Top return reasons **

**Size-Overall**73%

**Advertised Vs Actual Product**8%

**Material Quality**3%

**Quality-Overall**3%

**Value For Money**2%

**Defective Material/Parts**2%

**Stitch/Finish/Polish**2%

**Color**1%

**Gap/Hole**1%

**Comfort-Overall**1%