Wild instruments...

[DigitalBuddha]

As a radical new two-string violin goes on display in New York..............

https://www.youtube.com/watch?v=BmBizkOa5v4

[Brother D]

http://www.youtube.com/watch?v=32emJq7MVsQ&feature=youtube_gdata_player I see your two strings and raise (well, lower) you...

[Reverend Al]

And don't forget about the ol' diddley bow, which isn't much more than a single length of wire nailed to a flat board and has been around since the 1930s in America, and probably much longer in West Africa.  Here's Seasick Steve puttin' his to good use:

https://www.youtube.com/watch?v=JPOMYHKWGTE

[ZoeAbides]

Eventually this thread will reach its ultimate conclusion with the mouth harp, (otherwise known, slightly racistly, as a Jew's Harp).  Oh wait, it just did.