The Swatch method. . . . Fold it in half twice. Repeat the process with the next weapon, on handcuffs, knives, skeet launchers, reloading mechanisms and so on. It is now a permanent applicator. This is a polishing pad with a backing.
Several types are available on the market.
A cut piece of a shag rug about 3 to 5 inches square or to a particular shape is also done by some of the gunsmiths.