A few years ago we went through this "
attack of the loop station clones" (particularly in Australia, it seems), where every other acoustic guitarist armed him/herself with a rhythm stompbox, didgeridoo, rudimentary blues/slide riffs, and a Boss RC-20. Yay - instant one man band! (Only thousands of them, all sounding the same).
One Aussie who started out with a guitar and a looper is "Dub FX". He took a different path and developed a very successful style using beat boxing and vocal effects:
http://www.youtube.com/watch?v=UiInBOVHpO8Cheers,
Andy