The Bathgate Ratchet, a clicky, machined fidget-toy that works like a socket wrench

https://www.youtube.com/watch?v=dDdim63M310

For the past year, sculptor machinist Chris Bathgate has been designing a series of handheld, kinetic fidget toys, starting with a "slider" and then a top, a worry stone, a spinner, and a netsuke. (more")