Many of the fidget spinner products cost less than $10, and they come in a number of versions. According to Popular Mechanics: At its core, a spinner is simple.

Some version of fidget spinners occupies all of Amazon’s Top 20 best-selling toys and games; ... The metal edges are smoothed out. The ball- bearing assembly makes no noise.

Fidget Spinners by the Numbers: Popularity on Amazon As of May 18, 96 out of the top 100 bestselling products in the toys & games category on amazon.com are fidget toys.

How to make a Fidget Spinner with metal. home made project to try, Make fun fidget spinner using bicycle chain. DIY toy fidget spinners Subscribe!

Buy one from Amazon . Fidget toys currently hold 82 out of the top 100 best-seller spots in Amazon's Toys & Games section.Of those, 74 are fidget spinners and 8 are knock-off fidget cubes.

Fidget spinners quite possibly originated with an idea by Scott McCoskery of Kitsap County. Now Torqbar is fighting the cheap knockoffs and hoping to carve a niche market for its high-end version.