Has anyone come up with a good, cheap/free way to clean brass nails? I know that you can use a bullet casing tumbler, but I don't really want to invest the $50 or so in one right now. My method so far as been to put Brasso on a cloth, put the nail in a drill, and then just buff it that way. The problem is that it is one nail at a time. I just got my second machine and I don't want to spend hours individually polishing the nails.