Stylophone$17.98 from I Want One of Those
This super slick retro instrument (to quote Wired's Gadget Lab) "makes 8-Bit music sound orchestral". Used by everyone who was anyone in the 70s, the Stylophone is now making a well-deserved revival, and the re-released version includes a vibrato knob and volume control! Woohoo! A perfect gift for the music junky or sound artist in your life.