Originally Posted by taras0000

Try soaking the edges with WD40 or mineral oil (baby oil). The baby oil works better for heavier substances, WD40 for thinner ones. Baby Oil is pretty much a miracle cleaner, you just then need to soap and water clean afterward. A baby oil hand rubbing, followed by a regular soap and water wash has gotten my hands cleaner (from grease, oil, paints, other industrial substances) than any pumice based hand cleaner ever has, and it leaves my calluses intact for work. It will dissolve or at least weaken/soften most glues that are used for stickers/decals as well.