The Scout XT is tough enough to be tossed into any kind of environment—through a window, up a flight of stairs, into a puddle of water—and driven around remotely, beaming live video back to its handler. Recon Robotics is even developing an anti-pirate magnetic variant. During maritime emergencies, Navy personnel can launch it at the hull of a hijacked ship, where it will stick to the side with magnetic feet and roll up the hull and onto the deck. $13,000