Skip to content
50

monster high birthday party supplies

Worth a look

Shows a fragmented shelf (top 5 take 31% of clicks), but weak search conversion (1.6%) keeps it on the watch list.

Market size 21Growth 25Conversion 20Competition 84Returns 81Price range 57Avg price 63Brand share 81Review moat 73Quality gap 21

Competition

Great31%

top-5 click share — an open shelf

Brand share

Great54%

top-5 brand share — no brand owns this niche

Returns

Great1.7%

return rate — above 5% kills the launch gate

Review moat

Good564.92

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$13.62

avg listing price — sweet spot $15–$100

Price range

Good$5.03–$28.40

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

Growth

Okay+0.4%

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

Market size

Bad$85K

$85K/yr · 391K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Conversion

Bad1.6%

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

According to Flapen's Amazon United States niche tracking, monster high birthday party supplies is a $85K/yr Amazon United States market (391K searches/yr). The top 5 brands hold 54% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

monster high birthday party supplies market data

Units sold / yr
10K–13K
avg 100–250/product
Revenue / yr
$136K–$170K
units × avg price
Conversion rate
1.6%
Avg BSR
#3,650
Page quality
0%
Prime
94%
Sponsored
63%
Out of stock
43.2%
Avg brand age
27 months
Avg seller age
138 days

Competition & brand share

Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.

Brands

31 rising

Sellers

153

Top-5 brand share

54%

Top 20: 93%

Top-5 click share

31%

Top 20: 75%

Open market

41%

  • Monster High16%
  • EIXJJTED15%
  • Nickelodeon9%
  • Smryego7%
  • SDONY7%
  • Generic5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.4% search growth over the last 90 days.
8K6KSpike '25Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Top monster high birthday party supplies search terms

  • monster high birthday decorations103K/yr
  • monster high party decorations46K/yr
  • monster high decorations28K/yr
  • monster high birthday27K/yr
  • monster high decor22K/yr
  • monster high cake topper16K/yr
  • monster high party14K/yr
  • monster high party supplies13K/yr
  • monster high scary sweet birthday clawdeen25K/yr
  • monster high scary sweet birthday22K/yr
All search terms

Top monster high birthday party supplies products on Amazon

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

0%3%$3K6%$5K9%$8K12%$10K1101001K10K Reviews — right = deep review moat Market 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.

What buyers say about monster high birthday party supplies

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

What buyers love

Quality-Overall18%

“It is a good quality toy”

Color13%

“her colors are perfect”

Value For Money12%

“Worth it”

Fun/Entertainment Experience9%

“Fun and easy”

Advertised Vs Actual Product8%

“Exactly What I Needed”

Gifting Purpose6%

“Purchased this as a Christmas Gift for my grand baby”

Size-Overall5%

“Just the right size”

Design-Overall4%

“The design is so cute”

Collectibles3%

“Overall great to have in your collection”

Durability2%

“Durable”

What buyers complain about

Size-Overall13%

“These were larger than I expected”

Quality-Overall13%

“the hair quality isn't great”

Durability7%

“fell apart easily”

Color6%

“Unfortunately the product photo makes it look darker than it is in person”

Advertised Vs Actual Product6%

“Its bordering false advertisement”

Adhesion/Stickiness4%

“Arrived with glue stuck in her hair”

Value For Money3%

“costed me $3000 worth of surgery to get it out”

Thickness3%

“Its like very thick”

Smell2%

“Smelly”

Drop/Impact Protection2%

“absolutely no protection for damages”

Top return reasons

Value For Money25%
Color19%
Size-Overall11%
Advertised Vs Actual Product10%
Defective Material/Parts8%
Quality-Overall4%
Durability3%
Adhesion/Stickiness2%
Functionality-Overall2%
Product Condition2%

Common questions

Is monster high birthday party supplies profitable to sell on Amazon United States?
The niche generates $85K/yr across 49 tracked products. 1 of 19 products launched in the last 360 days are still selling. 90-day search growth is +0.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the monster high birthday party supplies niche?
31 brands and 153 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in monster high birthday party supplies?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 1.7%.
When does demand for monster high birthday party supplies peak?
Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the monster high birthday party supplies niche?
Listings span $5.03–$28.40; the average listing price is $13.62 (sweet spot $15–$100). The average incumbent carries 565 reviews — the moat a new listing must climb.