Is little mermaid costume toddler profitable to sell on Amazon United States?

The niche generates $51K/yr across 37 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is -25.9%. Flapen's verdict: Skip it (39/100).

How competitive is the little mermaid costume toddler niche?

21 brands and 29 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 59% of demand.

What do buyers complain about in little mermaid costume toddler?

Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 5.8% — above our launch gate.

When does demand for little mermaid costume toddler peak?

Demand peaks in Sep–Oct; the busiest month runs 11.4× the quietest.

What does it cost to enter the little mermaid costume toddler niche?

Listings span $9.65–$53.12; the average listing price is $25.81 (sweet spot $15–$100). The average incumbent carries 2,076 reviews — the moat a new listing must climb.

Little Mermaid Costume Toddler

Skip it

Weak search conversion (0.5%) — this niche doesn't clear our bar today.

Avg price

Incredible$25.81

avg listing price — sweet spot $15–$100

Price range

Great$9.65–$53.12

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

Brand share

Great59%

top-5 brand share — no brand owns this niche

Competition

Good46%

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

Review moat

Okay2,076

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Bad5.8%

return rate — above 5% kills the launch gate

Market size

Bad$51K

$51K/yr · 417K searches

Growth

Bad-25.9%

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

Conversion

Bad0.5%

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

Signals No Dominant Brand Low Review Barrier High Returns

Is little mermaid costume toddler profitable on Amazon?

According to Flapen's Amazon United States niche tracking, little mermaid costume toddler is a $51K/yr Amazon United States market (417K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 39/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

little mermaid costume toddler market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 3K–4K; avg 0–100/product
Revenue / yr: $77K–$103K; units × avg price
Conversion rate: 0.5%
Avg BSR: #675
Page quality: 0%
Prime: 92%
Sponsored: 92%
Out of stock: 19.9%
Avg brand age: 43 months
Avg seller age: 175 days

Competition: brands, sellers & click share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 falling

Sellers

Top-5 brand share

59%

Top 20: 99%

Top-5 click share

46%

Top 20: 81%

Open market

35%

Fylytota19%
Fun Costumes13%
Disney12%
Joy Join9%
iTVTi6%
Yosbabe6%

little mermaid costume toddler demand & seasonality

Weekly Amazon search volume, last 104 weeks — -25.9% search growth over the last 90 days.

Peak months: Sep, Oct · busiest ÷ quietest = 11.4×

Open Trend

Top little mermaid costume toddler search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

ariel costume for girls216K/yr -44.5%0.6% conv.
ariel costume82K/yr +18.5%0.3% conv.
the little mermaid costume14K/yr -31.0%0.1% conv.
disfraz de ariel para nia6K/yr +6.7%0.1% conv.
little mermaid costume toddler17K/yr -2.8%0.5% conv.
ariel mermaid costume7K/yr -6.6%0.1% conv.
little mermaid costumes6K/yr +8.4%0.1% conv.
ariel costume 5t5K/yr +18.8%1.0% conv.
girls ariel costume6K/yr -11.4%0.7% conv.
mermaid costume 2t5K/yr +28.6%0.5% conv.

All search terms

Top little mermaid costume toddler 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.

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

Fylytota Girls Mermaid Dress Little Mermaid Costume Princess Sequin Sling Tutu Dress for Toddler Kids Birthday Party Turquoise

Fylytota$25.124.8★39 rev

Fun Costumes - Disney The Little Mermaid Ariel Costume Princess of the Sea for Fantasy Cosplay Beach Theme Party & Dress Up Small

Fun Costumes$53.124.2★78 rev

Joy Join Little Mermaid Costume for Little Girls Dress Up 3T 4T

Joy Join$23.124.5★3,973 rev

iTVTi Little Girls Mermaid Costume Princess Dress Up Ariel Outfits with Accessories Wig Birthday Party Halloween Cosplay Blue 4-5 Years(Tag 120)

iTVTi$25.714.6★674 rev

Disney Girls Princess Fantasy Gown Nightgown AURORA 6

Disney$20.024.8★21,893 rev

Newest

by launch date

Disney Little Mermaid Girls Princess Dress Nightgown Fantasy Gown Soft & Cute Pajamas for Kids

Disney$25.4821,893 rev

2mo ago

G.C Mermaid Costume for Girls Ages 2-7 Blue Dress Up Set with Wig Crown Wand Princess Party Halloween Birthday Cosplay Outfit

G.C$27.7832 rev

6mo ago

Disney Princess Ariel Toddler Girl Dresses 2 Pack Purple Green Ruffle Sleeve Costume & Pink Sleeveless Sundress Set Birthday Summer Outfits Clothes 3T

Disney$28.02424 rev

7mo ago

Disney Store Official Princess Ariel Halloween Costume for Kids - Disney Princess Dresses for Girls - Dress up Clothes for Pretend Play - The Little Mermaid Costume - Size 4

Disney Store$48.52128 rev

10mo ago

Fylytota Girls Mermaid Dress Little Mermaid Costume Princess Sequin Sling Tutu Dress for Toddler Kids Birthday Party Turquoise

Fylytota$25.1239 rev

11mo ago

What reviews say buyers love and hate about little mermaid costume toddler

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

What buyers love

Size-Overall24%

“Great fit”

Quality-Overall14%

“It is made beautiful”

Value For Money13%

“Its totally worth it”

Gifting Purpose7%

“This was a gift for a little girl”

Material Quality6%

“great material”

Design-Overall5%

“the accessories super cute”

Fun/Entertainment Experience4%

“The costume was fun for her”

Durability4%

“Durable”

Stitch/Finish/Polish3%

“it seems like it is sewed well”

Advertised Vs Actual Product3%

“Exactly as described”

What buyers complain about

Size-Overall27%

“Runs very small”

Durability13%

“Broke as soon as my daughter tried it on”

Quality-Overall13%

“accessories were not good quality”

Advertised Vs Actual Product8%

“Item is not as advertised”

Allergies6%

“Ruffles on puffed sleeves leaves brush burn rash”

Stitch/Finish/Polish5%

“it was not sewn well at all”

Thickness3%

“its thin material and Id say runs a little small more of a 2-3 bit a 3-4”

Comfort-Overall3%

“uncomfortable”

Shrinkage Resistance2%

“Def will shrink in the dryer”

Color2%

“I do wish the red hair was a little less ultra fake vibrant”

Top return reasons

Size-Overall60%

Length5%

Material Quality5%

Waist Fit4%

Quality-Overall4%

Advertised Vs Actual Product3%

Chest Fit3%

Value For Money2%

Sleeve Fit2%

Durability2%

Common little mermaid costume toddler questions

Is little mermaid costume toddler profitable to sell on Amazon United States?: The niche generates $51K/yr across 37 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is -25.9%. Flapen's verdict: Skip it (39/100).
How competitive is the little mermaid costume toddler niche?: 21 brands and 29 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 59% of demand.
What do buyers complain about in little mermaid costume toddler?: Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 5.8% — above our launch gate.
When does demand for little mermaid costume toddler peak?: Demand peaks in Sep–Oct; the busiest month runs 11.4× the quietest.
What does it cost to enter the little mermaid costume toddler niche?: Listings span $9.65–$53.12; the average listing price is $25.81 (sweet spot $15–$100). The average incumbent carries 2,076 reviews — the moat a new listing must climb.