The Air Hog Zero Gravity Micro R/C Car Uses Vacuum To Drive On Walls And CeilingsEver tried to drive an R/C car on the wall only to come face-to-face with that stupidest of Newton's laws — gravity? No more! Air Hog Zero Gravity Micro R/C cars channel Jim Hall and his Chaparral 2J design, using a small fan to create enough suction to allow the little radio-controlled critters to cruise right up a flat wall and even across the ceiling. We're not sure if you can shut the things down mid-cruise, allowing you to launch off the ceiling ballistic-missile-style right into someone's head, but we're sure hoping so. And for just $44, ask yourself: Can you afford not to have one? [Dvice]