Golan Levin - Interactive Art

Golan Levin's a genius.

http://www.ted.com/talks/golan_levin_ted2009.html?awesm=on.ted.com_24&utm_campaign=ted&utm_medium=on.ted.com-twitter&utm_source=direct-on.ted.com&utm_content=site-basic

Double Taker(Snout) - http://www.flong.com/projects/snout/
and many more!

Kurt Schwitters and Ursonate

http://en.wikipedia.org/wiki/Kurt_Schwitters

The awesome performance.
http://www.flong.com/projects/ursonography/