It's kind of a silly idea. I finished cutting in a butterfly vent in the side of my cabinet and was cleaning out the metal chips when I thought of it. The inside is hard to clean and a pain. So I lined it with aluminum foil, and held the foil in place with small button magnets. Since the cabinet doesn't get too hot, the magnets should hold up. It took five minutes to line it which is much less than cleaning it. I know it is crooked, I'm not any good at wrapping presents either.