Not really robot related, but sometimes I get so frustrated with work I need to blow off some steam. Enter Backyard Ballistics, a great book that teaches you how to make spudguns, mini-catapults, and smallest of all, matchstick rockets.
This, and a few more books are written by William Gurstell, the man who had a website called backyard-ballistics.com, that sparked my brain into more research into amateury-ness.
I've only read Backyard Ballistics and Whoosh Boom Splat!, but both are awesome to have in the library for a plethora of weekend projects to make your S.O. swear and yell at you!
Later kids!
-Z