It's true. Once a month, I change places with my doppleganger and he draws a bike themed cartoon for Cycling Plus magazine. I don't usually post them because I assume that people are more interested in my comic work- but I quite like some of them:
As it goes, I might be switching places with my doppelganger on a permanent basis pretty soon. If so, he will be drawing cartoons, while I will occasionally pop back and draw comic covers, rather than sequentials. I hear his universe is pretty funky, actually. Elvis is alive and well, nobody has ever heard of Simon Cowell and personal rocket belts were invented quite some time ago.
Unfortunately, skinny jeans are also in fashion over there as well- but you can't have everything.
More cartoons here.