Have you ever heard of a gAtari? It's pretty much exactly what it sounds like: a guitar made out of Atari consoles. Check out a video of a dude rocking out on one here, and then come back to this slideshow, because we aim to outgeek the gAtari with this top 10 list. Is that even possible? YES IT IS, DEAR MASTERMINDS. From ancient Greek harps to wearable synthesizers, these instruments are the alpha geeks of the music world.