transformers birthday party supplies
Worth a lookShows a sweet-spot price point ($20.08 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Great$20.08avg listing price — sweet spot $15–$100
Price range
Great$5.93–$78.61cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great315.5avg incumbent reviews — the moat a new listing must climb
Competition
Great32%top-5 click share — an open shelf
Returns
Good2.2%return rate — above 5% kills the launch gate
Market size
Good$426K$426K/yr · 478K searches
Conversion
Good4.4%search→purchase rate — share of searches ending in a sale
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-16.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, transformers birthday party supplies is a $426K/yr Amazon United States market (478K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jan. Verdict: Worth a look — 56/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
transformers birthday party supplies market data
- Units sold / yr
- 15K–20K
- avg 250–500/product
- Revenue / yr
- $301K–$402K
- units × avg price
- Conversion rate
- 4.4%
- Avg BSR
- #2,209
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 83%
- Out of stock
- 10.2%
- Avg brand age
- 33 months
- Avg seller age
- 146 days
Competition & brand share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
19 rising
Sellers
35
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
32%
Top 20: 76%
Open market
16%
- Treasures Gifted22%
- Unique22%
- Transformers20%
- Seyal8%
- Anagram7%
- Bestbase5%
- Open — no brand owns it (13 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -16.0% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 1.8×
Top transformers birthday party supplies search terms
- transformers birthday decorations180K/yr
- transformer birthday decorations54K/yr
- transformers party decorations50K/yr
- transformers birthday24K/yr
- transformer party decorations23K/yr
- transformers party supplies15K/yr
- transformer birthday13K/yr
- transformers decorations11K/yr
- transformers party12K/yr
- transformers birthday banner11K/yr
Top transformers 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Treasures Gifted Transformers Backdrop 4.25ft Tall x 6ft Wide - Transformers Party Decorations - Transformers Birthday Banner - Transformers Party Supplies - Transformers Birthday Backdrop
Treasures Gifted$26.504.6★184 rev
Transformers Birthday Party Supplies | Serves 16 Guests | Transformers Party Supplies | Transformer Dinner & Cake Plates Napkins Tablecover Button | Officially Licensed
Unique$23.904.7★318 rev
Transformers Optimus Prime Birthday Boys Short Sleeve T-Shirt for Big Kids Black
Transformers$16.964.9★53 rev
Optms Prme Happy Birthday Banner Decoration Transformers-Themed Party Garland Featuring Bold Robot Designs & Bright Colors Fun Supplies for Birthdays Celebrations & Fan Events
Seyal$9.704.2★8 rev
Transformers Birthday Decorations for Birthday Party | Tablecloth 16 Plates 16 Napkins | Officially Licensed
Unique$19.884.9★39 rev
Newest
by launch date
Cartoon Robots Birthday Decoration Cartoon Trans of formers Theme Banner Swirls Centerpieces Latex Balloons for Anime Party Supplies Baby Shower
PINUO$11.960 rev
Bumblebee Birthday Decorations Cartoon Robot Backdrops for Party Decorations Supplies Anime Happy Birthday Banner Backdrop for Party Supplies (5x3ft)
karg$14.776 rev
8Pcs Cartoon For Robot Honeycomb Table Centerpiece Birthday Party Supplies Table Decorations for Kids Party Decorations.
FFGJA$17.773 rev
Cartoon For Robot Party Supplies Birthday Decorations Set Include Banner Balloons Hanging Swirls Cake Cupcake Toppers for Boys Girls Party.
FFGJA$20.774 rev
Cartoon Robot Birthday Party Decorations Transformerr Banner Cartoon Theme Party Decorations for Boys Indoor Outdoor Birthday Party Supplies Backdrop 5*3FT)
picidae$15.3320 rev
Trending
90-day click momentumCartoon Robots Birthday Decoration Cartoon Trans of formers Theme Banner Swirls Centerpieces Latex Balloons for Anime Party Supplies Baby Shower
PINUO$11.960.0★
Bumblebee Birthday Decorations Cartoon Robot Backdrops for Party Decorations Supplies Anime Happy Birthday Banner Backdrop for Party Supplies (5x3ft)
karg$14.774.8★
TRANSFORMERS Boys Jersey Tank Top Shirt and Mesh Short Set for Toddler and Big Kids
Transformers$22.764.6★
Treasures Gifted Officially Licensed Transformers Party Supplies - Serves 16 Guests - Dinnerware Deluxe Set - Transformers Plates Napkins Cups & Tablecloth
Treasures Gifted$38.944.6★
Transformers Optimus Prime Birthday Boys Short Sleeve T-Shirt for Big Kids Black
Transformers$16.964.9★
What buyers say about transformers birthday party supplies
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality and arrived quickly”
“Sizes were great”
“The backdrop was exactly as described”
“Great value”
“He had a great deal of fun with them”
“Good as a gift”
“Nice Design”
“it's very easy to do”
“Ideal prizes”
“Great quality easy to inflate”
What buyers complain about
“So small”
“I would not have paid more than $2.99 if I knew the CHEAP quality of this cake topper”
“False advertisement”
“Fell apart easy so my kid lost interest which was a bummer”
“That the banner was not spelled right”
“Too many instructions”
“It's flimsy paper”
“not worth the price”
“I didnt feel comfortable opening it”
“No Glitter”
Top return reasons
Common questions
- Is transformers birthday party supplies profitable to sell on Amazon United States?
- The niche generates $426K/yr across 52 tracked products. 3 of 15 products launched in the last 360 days are still selling. 90-day search growth is -16.0%. Flapen's verdict: Worth a look (56/100).
- How competitive is the transformers birthday party supplies niche?
- 19 brands and 35 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in transformers birthday party supplies?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 2.2%.
- When does demand for transformers birthday party supplies peak?
- Demand peaks in Jan; the busiest month runs 1.8× the quietest.
- What does it cost to enter the transformers birthday party supplies niche?
- Listings span $5.93–$78.61; the average listing price is $20.08 (sweet spot $15–$100). The average incumbent carries 316 reviews — the moat a new listing must climb.