Electric violin instrument!
Revenge of the nerds...er, revenge of the band geeks or music geeks maybe. It would be cool though to have an electric violin as an option. : )
Oh, and maybe a crystal bowl instrument sound, tuning fork instrument sound.... an instrument of a barfing sound would be kinda funny like they did in Ferris Bueller's Day Off. tee hee... or a bark or meow instrument . but not needed necessarily...
Electric violin though would be awesome though