I don’t know if it would be politically incorrect to start marketing bumper stickers like these…
Touchy!
…or if it’s just plain old fashion funny (which I guess would make it politically incorrect)?
JusWondering… Is This Bad? Or By Asking, Does That Make It Bad?
monkeyBLOG monkeyDO 
I’d say you’re pretty good to go with that. Just remember, if you run into racists they may want to firebomb your car especially if they are illiterate.