Can someone elaborate on using dryer sheets in tumblers to prolong the life of the media?
Also somewhere I read about someone using rice???
If you are looking for cheap tumbler media, the pet stores sell bulk ground walnut shells for lizard cages. It works great and comes in up to 50 lb bags. If you really want them to shine, put a tablespoon of liquid car polish like nu-finish in the media, tumble to mix and then your brass.
Rice also works ok but not as well.