Make's Meg Allan Cole recorded her first attempt at assembling a papercraft mechanical automaton, choosing a handsome Mario Bros number. The short video gives you a flavor for what's involved. Here's the files if you want to try it yourself.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.