Who is Ken Blackburn? He's a Guiness record-holding paper airplane flyer, his site includes tips and patterns you can print out and fold to make your own versions of his record-breaking designs. -Link-

Speaking of silly little toys, here's a site that shows how to make tiny matchstick powered rockets: -Link-

Neither of these do it for you? For the discerning hobbyist, how 'bout your own still instead? Details (not that I'm condoning any of this) at "Thicko's Guide to Distilling Alcohol". -Link-