It's far from the first rock scissors -playing device we've seen, but this glove made by Steve Hoefer (of Secret Knock door lock fame) may well be the most ingenious. You see, not only will it let you play a game of rock-paper-scissors by yourself (and who hasn't wanted to do that?), but it will actually learn to identify the weaknesses in your game and eventually become an unstoppable rock-paper-scissors-playing machine (or at least as unstoppable as you can be at rock-paper-scissors). Head on past the break to check out the glove in action, and hit up the link below for the complete details for making your own.