LEGO BrickArms, $35, BrickArms
The modern plastic war man needs more than stock LEGO weaponry. Win the plastic arms race with these grenade launchers, bats, and .50 caliber sniper rifles.
USB Digital Eyepiece for Telescope, $100, ThinkGeek
Attaches to your telescope and turns it into an extraterrestrial webcam. Save photos and video of Ogg and Grogg to your PC!
LEGO Minifigures, $5, LEGO.com
Someone's going to have to take those exotic plastic arms into battle: it might as well be elves, sumo wrestlers, a hula girl, gorilla or other random plastic stereotype.