Decals !

[Sean Kennedy]

Originally Posted by Dion Hildebrandt

In the autobody industry we use a rotary rubber eraser tool for large decals, if used carefully no paint lifting and a just a little polish on the paint for the rubber residue

Any autobody shop should have those, some people call them plastic razor blades. Use a heat gun to get the glue good and pliable, than use the 'razor blade' to scrape the sticker off if necessary. Goo Gone like mentioned above is good for the residue. Easiest possible way to do the job.