At the moment im loving my Axon midi guitar processor....check out the link.
http://www.axon-technologies.net/mod...sid=1&menu=101
Said to be the fastest guitar converter on the market......and they are getting hard to find too!! Basically allows me to play any instrument on my guitar.....harp,piano,drums,brass,strings or any combination i want. Doing two handed tapping....eg....i can do a piano walking bass line with my left hand on 3 dedicated strings and on the other 3 strings i can play a drum beat or a harp melody.......the options are huge!!! Can even store sound effects or samples and call them up at any time!!! Its a wonderful piece of gear for the guitarist/bass player that wants to be a one man band. Now combine this unit with a loop pedal and realistically, i could create anything......the only thing that stops you is your imagination.
Its not a cheap exercise but the results are worth it.