We've all been there: About to whip your friend's ass in a not-so-friendly game of Mario Kart when you realize there's only one controller! You should have invested that $20 you blew on booze on this: Ion's portable Go Pad controller, which folds up to be the size of a golf ball, and gives you eight buttons. It's also compatible with Mac and PC computers, so your friend (who chose to be Bowser, mind you) will be subject to your skillz on either OS. [ION Audio via Geeky Gadgets]