Point of interest on the internet – the Automata blog. From simple things like marble hill climbers and wind up banks that snatch a coin from a perch to much more complicated devices, it’s all here.
Mostly hand cranked devices consisting of cams, levers and pivot points. Somewhere the NYT has a brilliant pic of a life size Obama vs. McCain rock’em sock’em device. They’re like lego technics for adult woodworkers!