Is cinnamoroll birthday decorations profitable to sell on Amazon United States?

The niche generates $210K/yr across 41 tracked products. 4 of 17 products launched in the last 360 days are still selling. 90-day search growth is -0.6%. Flapen's verdict: Worth a look (52/100).

How competitive is the cinnamoroll birthday decorations niche?

22 brands and 27 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 69% of demand.

What do buyers complain about in cinnamoroll birthday decorations?

Top complaints mined from reviews: Size-Overall, Durability, Thickness. The return rate is 2.4%.

When does demand for cinnamoroll birthday decorations peak?

Demand peaks in Sep; the busiest month runs 2.2× the quietest.

What does it cost to enter the cinnamoroll birthday decorations niche?

Listings span $5.50–$29.00; the average listing price is $14.67 (sweet spot $15–$100). The average incumbent carries 193 reviews — the moat a new listing must climb.

cinnamoroll birthday decorations

Worth a look

Shows a thin review moat (193 avg reviews), but strong incumbent ratings (4.6★) keeps it on the watch list.

Review moat

Great192.61

avg incumbent reviews — the moat a new listing must climb

Competition

Great40%

top-5 click share — an open shelf

Avg price

Good$14.67

avg listing price — sweet spot $15–$100

Returns

Good2.4%

return rate — above 5% kills the launch gate

Brand share

Good69%

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

Price range

Good$5.50–$29.00

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

Conversion

Okay3.9%

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

Market size

Okay$210K

$210K/yr · 372K searches

Growth

Bad-0.6%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, cinnamoroll birthday decorations is a $210K/yr Amazon United States market (372K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Sep. Verdict: Worth a look — 52/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

cinnamoroll birthday decorations market data

Units sold / yr: 13K–15K; avg 100–250/product
Revenue / yr: $183K–$220K; units × avg price
Conversion rate: 3.9%
Avg BSR: #3,932
Page quality: 0%
Prime: 100%
Sponsored: 83%
Out of stock: 15.8%
Avg brand age: 27 months
Avg seller age: 157 days

Competition & brand share

Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.

Brands

22 rising

Sellers

Top-5 brand share

69%

Top 20: 99%

Top-5 click share

40%

Top 20: 82%

Open market

28%

MLEDUY27%
WOOACME20%
AVONO13%
Zailo4%
Dalieiui4%
DIOSN3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -0.6% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 2.2×

Open Trend

Top cinnamoroll birthday decorations search terms

cinnamoroll birthday decorations151K/yr -0.6%2.8% conv.
cinnamon roll birthday decorations35K/yr -2.8%2.3% conv.
cinnamoroll birthday29K/yr -6.0%1.9% conv.
cinnamoroll party decorations25K/yr +11.1%2.5% conv.
cinnamoroll balloons24K/yr -12.0%1.5% conv.
cinnamon roll party decorations16K/yr +1.9%2.5% conv.
cinamon roll party decorations16K/yr +0.9%2.2% conv.
cinnamoroll balloon11K/yr +13.2%1.1% conv.
cinnamoroll party12K/yr -7.5%2.0% conv.
cinnamon roll hello kitty birthday decorations8K/yr -17.9%2.9% conv.

All search terms

Top cinnamoroll birthday decorations 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.

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

123 PCS Birthday Party Decorations - Happy Birthday Banner Balloons Tablecloth Paper Tableware Backdrop Hanging Swirl for Adult Party Supplies

MLEDUY$23.714.7★85 rev

202 PCS Cute Birthday Party Supplies - Theme Balloon Arch Kit Banner Balloons Backdrop Tablecloth Paper Tableware for Adult Theme Party Decorations

MLEDUY$20.374.7★17 rev

Birthday Party Decorations Cute Party Supplies Include Banner latex Balloons Hanging Swirls Foil Balloon Cake Cupcake Toppers Tablecloth for Theme Party

WOOACME$17.664.6★96 rev

Cinnamoroll Birthday Decorations 101PCS Party Supplies Set Include Banner Balloons Stickers Hanging Swirls Cake Cupcake Toppers Tablecloth for Kids Cinnamoroll Theme Party

AVONO$20.794.8★50 rev

Cute Dog Theme Party Decorations Kit - Banner Cake Topper Cupcake Toppers Hanging Swirls Balloons Tablecloth Backdrop Tableware - Complete Kids Birthday Party Supplies

MLEDUY$17.174.8★19 rev

Newest

by launch date

Cute Dog 2nd Birthday Party Decorations Set Banner Balloons Backdrop Tablecloth Cake & Cupcake Toppers Headband & Door Sign Puppy Theme Party Supplies for 2nd Birthday Celebration

Dalieiui$19.831 rev

3mo ago

49 Psc For Cinnamoroll Birthday Decorations Party Supplies Set Include Banner Backdrop Balloons Hanging Swirls Cake Cupcake Toppers Tablecloth for Kids Cinnamoroll Theme Party

DIOSN$15.8416 rev

4mo ago

Cinnamoroll Birthday Decorations Party Supplies Set Include Banner Balloons Hanging Swirls Cake Cupcake Toppers Tablecloth for Kids Cinnamoroll Theme Party

AVONO$17.007 rev

5mo ago

Cinnamoroll Birthday Decorations 101PCS Party Supplies Set Include Banner Balloons Stickers Hanging Swirls Cake Cupcake Toppers Tablecloth for Kids Cinnamoroll Theme Party

AVONO$20.7950 rev

5mo ago

Cinnamoroll Birthday Decorations 20 Plates 20 Napkins and 1 Tablecover for Boys Girls Party Supplies

AVONO$16.044 rev

6mo ago

What buyers say about cinnamoroll birthday decorations

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

What buyers love

Quality-Overall21%

“The quality is fair in my opinion”

Value For Money17%

“Good Price”

Advertised Vs Actual Product11%

“It does what it needs to do”

Fun/Entertainment Experience6%

“This kids loved this little game they had fun with it”

Design-Overall6%

“Good variety and design”

Adhesion/Stickiness5%

“The sticky part to hold them up held so well”

Color5%

“The quality is nice with good colors”

Ease Of Use4%

“Easy to use”

Durability3%

“its lightweight yet durable”

Brightness/Shine/Glow2%

“Shimmery”

What buyers complain about

Size-Overall18%

“2 balloon s a pretty big”

Durability11%

“Not durable at all”

Thickness7%

“The cardstock cake topper isn't thick”

Adhesion/Stickiness7%

“Doesnt Stick & Thin”

Quality-Overall5%

“Cheap”

Strength5%

“Very fragile and break easily”

Design-Overall3%

“Design looks faded and cheap”

Product Condition3%

“These were shoved in a bag and already used”

Ease Of Cleaning3%

“Leaves Hard to Clean Residue”

Assembly/Installation3%

“Setup took a little time”

Top return reasons

Size-Overall20%

Color20%

Value For Money17%

Advertised Vs Actual Product9%

Adhesion/Stickiness5%

Quality-Overall4%

Defective Material/Parts4%