I purchased a used pair of Bridgestone tank badges that look pretty decent, no cracks, but the gold paint of the lettering is pulling away from the plastic in a few places on the back. Has anyone figured out the best way to strip the paint without damaging the finish on the plastic under the paint. The smooth surface is required to keep the gloss of the gold and black paint viewed from the front. These aren't bad, you have to get close to notice, but in case I decide to restore them, I don't want to damage the plastic.