DIY Medusa Headband. Buy cheap plastic snakes at the dollar store (a few dozen in a pack), wire, a double banded headband, and a can of silver or gold spray paint. Wire the snakes onto the headband and then spray paint the whole thing.
TV remote wand! All you have to do is program the gestures you want to use for each thing you'd like to turn on, wave the magic wand and bam - magic. Flick it to turn the channel, turn it to change volume, 13 commands... $89.95