Here is a link to a video of Mr. Woo, the Chinese Robot Farmer on Gizmodo.com.
Note: If you want to make some junkbots of your own, I've got to recommend the book JunkBots, Bugbots, and Bots on Wheels.
[ Thanks Charles! ]
Automata old & new, kinetic sculpture, clockwork, toys, the mechanical arts & sundry contraptions of every description