Theremin – Invented in 1919 by Russian physicist Lev Sergeivich Termen, the theremin is in a category all by itself. It’s both spooky and impossible to explain (two things I enjoy). Steve Nieve (Elvis Costello) does a nice job with one!
Uilleann Pipes – I believe they have a “special beating” for those who call them bagpipes.
Magic Pipe – As a classically trained upright bass player That 1 Guy probably found this more interesting.
Glass Harmonica – Yet another awesome idea brought to us by Benjamin Franklin.
Laser Harp – Need I say more? The glasses are extra.