Now ringing up at $30 instead of $70, this balance ball is here to get your ab work in while you hammer out emails and chart your KPIs. The little micromovements that come from shifting your weight or ...

Hackaday forum member [machinelou] says he’s been fascinated with remote controlled hamster balls for quite some time. Inspired by a ball bot he saw on a BBC show, he finally picked up a 12″ plastic ...