Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Whenever I see them on cars, I have the urge to go rip them off. They're tacky, IMO. So I usually throw them in the trash.
 
A friend and I slap them on the side of our windows computer when we were playing with Pear PC (old PPC emulator to play with OSX) so we could be joking legel. The ELUA stated that OSX can ONLY be installed on an Apple labeled computer. So we slapped and apple sticker on our PC and they were apple labeled.

Also it was fun to make a apple Fanboy friend our frustrated.
 
I used to stick mine to handheld consoles and other electronics, think there's also one on the back of my guitar... That's it! Saving the rest for a rainy day and for when I get myself a new sketchbook.
 
Pasties?
Mine are in a drawer somewhere. If you wish to evangelize - your car.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.