Once upon a time being alone meant you were unable to play a decent game of rock-paper-scissors, but now you can finally amuse yourself with just your own hand. Granted you'll have to actually make a glove like this first.
I don't know if self-proclaimed "glove hacker" Steve Hoefer was lonely or bored when he decided to make this clever rock-paper-scissors playing glove which actually learns how you play and exploits your weaknesses, but kudos to him:
There are full instructions on how the Arduino-powered glove was made on Steve's site, but if you're both lonely and lazy, then you should consider just plain buying a shirt to play rock-paper-scissors against. [Grathio via Make]