When I saw the awesome "The Claw!" by FelixTheCrazy I had to print it but also wanted a base to put it on that would be broad enough that it won't fall over, the base from the Factorio Gun Turret looked like a good fit, I've put in a simple hub in the middle for the claw to be stuck to and still swivel on a piece of PLA or a thick wire.
Claw_base.stl | 1.5MB |