here's an every day item. we bought a bunch of rather dirty 50 BMG cases. well necessity is the mother of invention. went to the pet store and bought a bunch of lizard litter. ground up corncobs about the size of your fingernail. Pour this into a cement mixer, add the brass & some ISO but do it outside cause the dust really flies. worked like a million. brass came out shiny as can be. only problem is where on the loading bench does one place a cement mixer