Playing Black Sabbath on Tesla coils with an iron guitar, standing in a Faraday suit (video)

http://boingboing.net/2012/02/04/playing-black-sabbath-on-tesla.html

/ optically isolated Iron Man /

Make a whole iPad orchestra with this stuff

http://www.gizmodo.com.au/2012/01/you-could-make-a-whole-ipad-orchestra-with-this-stuff/

Bluetooth K-Bow

You've heard of an electric guitar.  You've probably heard of an electric piano.  Electric violin, maybe?   Get ready for the electric bow (for the violin).   Prices start at $1,995.

http://the-gadgeteer.com/2011/10/29/play-the-devil-went-down-to-georgia-on-your-fiddle-with-the-bluetooth-k-bow/