I've been reloading for over 25 years now and as most people do when I started I wanted the brass to shine like new. I got a tumbler which worked OK and then after time resorted to the "chemical treatment" since it was faster and less trouble. For about the last 20 years I haven't polished my brass at all and seldom bothered to clean it. My carbine brass needless to say looks like it came from a vomit machine rather than a reloading press so for the heck of it I pulled out my rusty old tumbler. A little oil and wiping off and it still worked! I used to use corn cobb media but none was on hand but I did have some "Quick Oats" (I hate the stuff) in the cub board. In the tumbler went the quick oats and 200 rounds of vomit carbine ammo. Forty-five minutes later (expecting nothing) I opened the tumbler up and WOW! Brass was all cleaned-up and 90% polished! Now I know something useful to do with oats other than horse feed. Its cheap and good for you too Mom was right! Hmmm I wonder what creamed wheat woud do?