Spiral marble toy

Single spiral that a marble rolls down

Score39RiskyPer print hour$1.20Low returnCompetitionSome sellers
Sells for $15 to $25 Idea to test

The numbers

Sells for$15 to $25
Print time6 to 10 h
Filament100 to 170 g
Cost per item$8.06
Marketplace fees$2.35
Left per sale$9.59
Per print hour$1.20
Demand (niche)Low
CompetitionMedium
Legal and licence riskLow
EvidenceIdea to test

Estimates for one item at the middle of the price range, after filament, power, machine wear, marketplace fees and your time at $15 an hour. Shipping not included. Not sales data.

How the score adds up

Profit per print hour4/30
Demand6/25
Low competition12/20
Low legal risk15/15
Evidence quality2/10

Demand and legal risk come from the niche Printed marble runs. An idea to test can score 69 at most until someone has seen it for sale.

Why it can work

  • Low brand or licence risk if the design is your own
  • Seasonal demand: Christmas

Why it might fail

  • Under $2 estimated profit per print hour
  • Thin public evidence, so treat these numbers with care

Be aware before you sell

The Etsy listing warns its 0.25 inch metal balls are a choking hazard, so check small-part rules and file terms first. No trademark or takedown was seen, so the risk sits in copying a designer's model. Etsy asks for your own original design, so a licensed file may not qualify.

Check your versionRun your own numbers

What Etsy shows for this

Etsy tags that match this product, with how many listings in our sample use them, their median price and views. Many listings means crowded; high views at a low price means a busy but cheap market.

Etsy tagListings using itMedian priceViews / month
3d printed toy28$431,126
toy25$37658
fidget toy25$181,129
3d printed toys15$173,855
desk toy10$19840
sensory toy9$18916

From a sample of 3,213 Etsy listings tagged as 3D printed, exported 10 and 11 November 2026 with a third-party Etsy research tool. Medians from that sample, so estimates, not sales data. All tags

Other products in this niche

37Marble mountain run37Desktop marble machine31Kids marble run track set

See the whole niche: Printed marble runs

Check your own idea before you print 50

Paste a link or drop your sliced file. Score, profit per print hour and legal risk in a minute. 3 checks a month are free.

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