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57

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

Incredible64.33

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

Great1.9%

return rate — above 6% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Okay77%

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

Competition

Okay62%

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

Conversion

Bad1.3%

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 moat Market 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.

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 '26SepDecMarJunAugNovMarMay

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-Overall29%

“AMAZING QUALITY”

Size-Overall27%

“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 Quality7%

“Durable material and very reliable”

Value For Money5%

“Overall I thought the costume was well priced”

Durability4%

“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 Feel4%

“Silky Dress”

Color3%

“The color is great”

Design-Overall2%

“help complete the look”

Add-Ons/Attachments2%

“Includes fun accessories”

Ease Of Use2%

“It is easy to put on”

What buyers complain about

Size-Overall32%

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

Brightness/Shine/Glow18%

“gets glitter everywhere”

Advertised Vs Actual Product8%

“Inaccurate picture”

Durability5%

“gems fell off easy”

Value For Money5%

“Waste of time and money”

Stretchability/Expandability/Elasticity3%

“- Material is not stretchy”

Quality-Overall3%

“Very bad quality”

Strength3%

“Flimsy”

Top return reasons

Size-Overall73%
Advertised Vs Actual Product8%
Material Quality3%
Quality-Overall3%
Value For Money2%
Defective Material/Parts2%
Stitch/Finish/Polish2%
Color1%
Gap/Hole1%
Comfort-Overall1%