The Flatworks LLC is raising funds for PlyFly Go-Kart: A 25 MPH Wooden Roadster on Kickstarter! A complete gas powered wooden go-kart that is as much fun to build as it is to drive. Arrives in 3 boxes and assembles in 1 day.
A fully loaded workshop play space See there? You could disguise that and use it in a traditional room. What is it? It's a "floor sweep". Simply sweep the crap into the box and the dust collector sucks it up.