Another option that worked for me is the rotary eraser. Im unsure of the trade name for the product, but it is a round rubber eraser that mounts to your rotary drill. Probably the only place to find it is your local auto-body paint/supply shop. They are designed to remove decals from cars. When I bought my Jaguar, the previous owner had his name stickered all over the boat, trailer, and cowling. That little wonder took care of them all, with NO damage to the finish. It does fling rubber all over the place, but it wipes off easily.