---
title: "Baby Shark Birthday Decorations — $457K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/baby-shark-birthday-decorations"
last_updated: "2026-08-09T12:03:48.556Z"
locale: en
meta:
description: "Niche score 57/100 · $457K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $457K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Baby Shark Birthday Decorations — $457K/yr Amazon US Niche (2026) - Flapen"
---
# **baby shark birthday decorations**
**Worth a look**
Shows a fragmented shelf (top 5 take 26% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 58Growth 39Conversion 34Competition 89Returns 71Price range 70Avg price 83Brand share 46Review moat 75Quality gap 27
**Competition**
**Great****26%**
top-5 click share — an open shelf
**Avg price**
**Great****$18.05**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****494.11**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$5.85–$35.94**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$457K**
$457K/yr · 927K searches
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+11.2%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, baby shark birthday decorations is a $457K/yr Amazon United States market (927K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Aug. Verdict: Worth a look — 57/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **baby shark birthday decorations market data**
- **Units sold / yr**
- **20K–25K**
- avg 100–250/product
- **Revenue / yr**
- **$361K–$451K**
- units × avg price
- **Conversion rate**
- **2.7%**
- **Avg BSR**
- **#1,746**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **93%**
- **Out of stock**
- **4.7%**
- **Avg brand age**
- **30 months**
- **Avg seller age**
- **161 days**
## **Competition & brand share**
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.
**Brands**
**19 **▼falling
**Sellers**
**52**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**26%**
Top 20: 57%
**Open market**
**18%**
- PartyWoo26% - Tstars25% - Unique13% - Generic7% - Luke and Lulu6% - Seyal4% - Open — no brand owns it (13 brands, 18%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.2% search growth over the last 90 days.
35K25KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/baby-shark-birthday-decorations/trend)
## **Top baby shark birthday decorations search terms**
- **baby shark birthday decorations**481K/yr+9.4%1.8% conv. - **baby shark birthday**52K/yr+47.3%1.3% conv. - **baby shark balloons**67K/yr+18.9%3.8% conv. - **baby shark party decorations**50K/yr+7.5%2.1% conv. - **baby shark decorations**39K/yr+9.8%1.6% conv. - **bebefinn birthday decorations**32K/yr+3.6%0.2% conv. - **baby shark birthday decorations girl**35K/yr+5.9%1.3% conv. - **baby shark party**23K/yr+15.8%1.0% conv. - **baby shark pinata**20K/yr+18.3%0.3% conv. - **pinkfong birthday decorations**22K/yr-9.6%0.4% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/baby-shark-birthday-decorations/search-terms)
## **Top baby shark 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.
0%2%$9K4%$18K6%$27K8%$37K101001K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink**Tstars**$17.44**4.8★670 rev](https://www.amazon.com/dp/B0FXVCQ823) [2**Baby Shark Birthday Decorations Set | Baby Shark Party Supplies | For Boys and Girls | With Banner Tablecloth Table Cover Dinner Plates Cake Plates Cups Napkins Sticker | Serves 16 Guests**Unique**$32.79**4.8★674 rev](https://www.amazon.com/dp/B096WCFJ59) [3**3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 3T Light Pink**Tstars**$17.54**4.8★670 rev](https://www.amazon.com/dp/B0FXVDHC2F) [4**PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Pink Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations**PartyWoo**$28.49**4.6★86 rev](https://www.amazon.com/dp/B0GDFQYSNN) [5**Baby Shark Birthday Decorations | Baby Shark Party Decorations | Serves 16 | Banner Tablecloth Plates Napkins Sticker | Officially Licensed**Unique**$21.96**4.5★48 rev](https://www.amazon.com/dp/B0FM9L1B25)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Shark Birthday Decorations Balloon Kit 52 PCS Shark Balloons XL 26 with Happy Birthday Banner Star Foil Balloons and Latex Balloons for Kids Ocean Theme Birthday Party Supplies**KROSCA**$23.52**58 rev4mo ago](https://www.amazon.com/dp/B0GHGMNRMP) [**PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Blue Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations**PartyWoo**$23.72**86 rev6mo ago](https://www.amazon.com/dp/B0CBJFKGGK) [**PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Pink Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations**PartyWoo**$28.49**86 rev6mo ago](https://www.amazon.com/dp/B0GDFQYSNN) [**PartyWoo Baby Shark Pink Foil Number 1 Balloon 5pcs 40 18 Inch Pink Round Star Mylar Helium Birthday Balloons for Boys and Girls Baby Shark Under the Sea Ocean Kids First Birthday Party Decorations**PartyWoo**$10.07**61 rev6mo ago](https://www.amazon.com/dp/B0GDFWFZ4T) [**PartyWoo Baby Shark Pink Foil Number 3 Balloon 40 Inch Pink Mylar Helium Birthday Number Balloons for Girls and Boys Baby Shark Under the Sea Ocean Theme Kids Third Birthday Party Decorations**PartyWoo**$8.95**87 rev6mo ago](https://www.amazon.com/dp/B0GDG797LQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Shark Birthday Decorations Balloon Kit 52 PCS Shark Balloons XL 26 with Happy Birthday Banner Star Foil Balloons and Latex Balloons for Kids Ocean Theme Birthday Party Supplies**KROSCA**$23.52**4.4★**▲ 113%**](https://www.amazon.com/dp/B0GHGMNRMP) [**3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink**Tstars**$17.44**4.8★**▲ 111%**](https://www.amazon.com/dp/B0FXVCQ823) [**Luke and Lulu Birthday Outfit Girl Shark Design - 2nd Birthday Girl**Luke and Lulu**$30.63**4.7★**▲ 110%**](https://www.amazon.com/dp/B0BKZ65S9Z) [**Generic Shark Balloons Vary ll (Multicolor Shark II)**Generic**$28.77**4.6★**▲ 109%**](https://www.amazon.com/dp/B0D86TLQHP) [**3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 3T Light Pink**Tstars**$17.54**4.8★**▲ 109%**](https://www.amazon.com/dp/B0FXVDHC2F)
**~~View all trending →~~**
## **What buyers say about baby shark birthday decorations**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Quality & Ease of Use”*
**Color**13%
*“Cute colors”*
**Size-Overall**9%
*“Great size”*
**Fun/Entertainment Experience**9%
*“Fun for kids”*
**Advertised Vs Actual Product**8%
*“Just like in the picture”*
**Value For Money**6%
*“Good value”*
**Durability**5%
*“dont break either”*
**Design-Overall**5%
*“Great design”*
**Inflation/Deflation**5%
*“Easy to inflate”*
**Ease Of Use**3%
*“easy to hang”*
### **What buyers complain about **
**Durability**12%
*“It breaks very easily”*
**Quality-Overall**11%
*“Bad quality”*
**Size-Overall**10%
*“Balloons were much bigger than I thought”*
**Adhesion/Stickiness**8%
*“they wouldnt stick to the sticks that came with them”*
**Value For Money**6%
*“Honestly not worth it for the price”*
**Thickness**5%
*“Not as dense as I wanted them to be”*
**Strength**4%
*“not sturdy”*
**Smell**3%
*“A toxic smell”*
**Material Quality**2%
*“Very cheap material”*
**Inflation/Deflation**2%
*“it just kept deflating”*
### **Top return reasons **
**Size-Overall**27%
**Value For Money**15%
**Color**14%
**Quality-Overall**6%
**Advertised Vs Actual Product**6%
**Defective Material/Parts**5%
**Adhesion/Stickiness**4%
**Material Quality**3%
**Durability**2%
**Smell**2%
## **Common questions**
- **Is baby shark birthday decorations profitable to sell on Amazon United States?**
- The niche generates $457K/yr across 73 tracked products. 12 of 34 products launched in the last 360 days are still selling. 90-day search growth is +11.2%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the baby shark birthday decorations niche?**
- 19 brands and 52 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in baby shark birthday decorations?**
- Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 2.1%.
- **When does demand for baby shark birthday decorations peak?**
- Demand peaks in Aug; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the baby shark birthday decorations niche?**
- Listings span $5.85–$35.94; the average listing price is $18.05 (sweet spot $15–$100). The average incumbent carries 494 reviews — the moat a new listing must climb.
## **Related niches in Home & Kitchen**
- 74 [**graduation centerpieces for tables 2023**](https://flapen.com/research/us/home-kitchen/graduation-centerpieces-for-tables-2023)$368K/yr+228.8%**Worth a look**- 74 [**artificial hanging flowers for outdoors**](https://flapen.com/research/us/home-kitchen/artificial-hanging-flowers-for-outdoors)$1.2M/yr+77.3%**Launch it**- 74 [**5th grade graduation decorations**](https://flapen.com/research/us/home-kitchen/5th-grade-graduation-decorations)$149K/yr+666.7%**Worth a look**- 75 [**4th of july party supplies**](https://flapen.com/research/us/home-kitchen/4th-of-july-party-supplies)$240K/yr>1,000%**Worth a look**- 75 [**desk goose**](https://flapen.com/research/us/home-kitchen/desk-goose)$2.2M/yr+40.7%**Launch it**- 75 [**fall candles**](https://flapen.com/research/us/home-kitchen/fall-candles)$620K/yr+155.9%**Worth a look**[**All Home & Kitchen niches **](https://flapen.com/research/us/home-kitchen)