Fender has a helpful post up on how to remove stickers from your guitar or case.
Probably the best way to remove stickers from a guitar without harming the finish—residue and all—is to use naphtha, which works well on all finish types, including nitrocellulose lacquer. The term “naphtha” actually refers to several rather volatile liquid hydrocarbon mixtures. Common products made with it include lighter fluid for wick-type lighters such as Zippo lighters, shoe polish, various cleaning fluids and solvents, and fuel for portable stoves and lanterns (camping gear, mostly).
photo by: Josh Writes a Blog
