thomas the train birthday party supplies
Skip itA small market ($66K/yr) — this niche doesn't clear our bar today.
Brand share
Great56%top-5 brand share — no brand owns this niche
Avg price
Great$16.04avg listing price — sweet spot $15–$100
Competition
Good43%top-5 click share — leaders hold, buyers still browse
Review moat
Good907.97avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.8%return rate — above 5% kills the launch gate
Price range
Good$5.06–$27.56cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Growth
Bad-11.0%90-day search growth — must beat 0% to launch
Market size
Bad$66K$66K/yr · 170K searches
According to Flapen's Amazon United States niche tracking, thomas the train birthday party supplies is a $66K/yr Amazon United States market (170K searches/yr). The top 5 brands hold 56% of demand. Verdict: Skip it — 48/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
thomas the train birthday party supplies market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- $64K–$80K
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #3,592
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 74%
- Out of stock
- 12.6%
- Avg brand age
- 33 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.Brands
22 falling
Sellers
40
Top-5 brand share
56%
Top 20: 99%
Top-5 click share
43%
Top 20: 85%
Open market
38%
- FFGJA16%
- Autrpoweo15%
- Lenglet14%
- Generic6%
- Yhnmju6%
- THOMAS & FRIENDS6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -11.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 2.0×
Top thomas the train birthday party supplies search terms
- thomas the train birthday decorations81K/yr
- thomas and friends birthday decorations16K/yr
- thomas the train birthday15K/yr
- thomas the train party supplies14K/yr
- thomas the train balloons9K/yr
- thomas birthday decorations11K/yr
- thomas the train party6K/yr
- thomas the train decorations6K/yr
- thomas train birthday decorations6K/yr
- thomas the train party decorations7K/yr
Top thomas the train 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
Train Birthday Party Supplies Train Friends Theme Party Tableware Includes 20Pcs Plates 20Pcs Napkins and 2Pcs Tablecloth for Kids Train Theme Party Decorations
Lenglet$25.614.5★123 rev
42Pack Train Friends Party Supplies Pack IncludesBannerCake TopperBlackdrop Balloons for Train Friends party Decoration plates
Autrpoweo$27.564.1★45 rev
12pcs Trains Hanging Swirls Birthday Party suppliers Decorations The Me
Generic$8.834.6★12 rev
Thomas Train birthday party supplies including cake caps cupcake caps flags Latex Balloons It is very suitable for boys and girl themed birthday party supplies
Yhnmju$22.034.4★21 rev
Train Birthday Party Decoration Include Train Theme Birthday Banner Cake Topper Latex Balloons Hanging Swirls for Thomas Train Theme Kids Party Supplies Baby Shower
PINUO$16.911.5★2 rev
Newest
by launch date
Thomas Train Birthday Decorations Thomas Train Party Supplies Include Happy Birthday Banner Cake Topper and Cupcake Toppers Balloons for Kids Party Decor
FFGJA$19.800 rev
Train Birthday Backdrop Party Supplies for Train Themed Party Decorations(5x3ft)
FFGJA$16.8512 rev
8Pcs Thomas Train Table Centerpieces Birthday Party Supplies Double Side Table Decorations for Thomas Train Themed Party Decorations
FFGJA$15.793 rev
25pcs Thomas Train Themed Party Supplies with 24pcs Cupcake Toppers 1pcs Cake Topper for Thomas Train Birthday Decorations
FFGJA$9.985 rev
Thomas Train birthday party supplies including cake caps cupcake caps flags Latex Balloons It is very suitable for boys and girl themed birthday party supplies
Yhnmju$22.0321 rev
Trending
90-day click momentumThomas Train Birthday Decorations Thomas Train Party Supplies Include Happy Birthday Banner Cake Topper and Cupcake Toppers Balloons for Kids Party Decor
FFGJA$19.800.0★
25pcs Thomas Train Themed Party Supplies with 24pcs Cupcake Toppers 1pcs Cake Topper for Thomas Train Birthday Decorations
FFGJA$9.983.3★
Train Birthday Backdrop Party Supplies for Train Themed Party Decorations(5x3ft)
FFGJA$16.854.4★
8Pcs Thomas Train Table Centerpieces Birthday Party Supplies Double Side Table Decorations for Thomas Train Themed Party Decorations
FFGJA$15.795.0★
Train Birthday Party Decoration Include Train Theme Birthday Banner Cake Topper Latex Balloons Hanging Swirls for Thomas Train Theme Kids Party Supplies Baby Shower
PINUO$16.911.5★
What buyers say about thomas the train birthday party supplies
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Worth it”
“Exactly what I was looking for”
“Great size”
“also good for giveaways or small prizes”
“Havent had any break yet”
“bright colors”
“Fun for all kids”
“Great party decorations”
“Easy to assemble too”
What buyers complain about
“Tiny sticker book”
“Not as advertised”
“Quality is very poor”
“balloons smelled”
“sounds bad”
“not worth the price”
“Ridiculous that you have to put everything together”
“it broke in his mouth”
“They are not sturdy at all and SUPER cheap”
“But the strap is not proportion for the shoe”
Top return reasons
Common questions
- Is thomas the train birthday party supplies profitable to sell on Amazon United States?
- The niche generates $66K/yr across 35 tracked products. 0 of 12 products launched in the last 360 days are still selling. 90-day search growth is -11.0%. Flapen's verdict: Skip it (48/100).
- How competitive is the thomas the train birthday party supplies niche?
- 22 brands and 40 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 56% of demand.
- What do buyers complain about in thomas the train birthday party supplies?
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Quality-Overall. The return rate is 2.8%.
- When does demand for thomas the train birthday party supplies peak?
- Demand is steady year-round — the busiest month runs 2.0× the quietest.
- What does it cost to enter the thomas the train birthday party supplies niche?
- Listings span $5.06–$27.56; the average listing price is $16.04 (sweet spot $15–$100). The average incumbent carries 908 reviews — the moat a new listing must climb.