I like round bales of hay. It is heavy, bulky, and hard to move, if you don't have equipment, but for around thirty bucks you have a target that lasts years. I put one on a pallet and put a piece of tin over the top of it. I have been shooting into it almost every day for two years and it is still holding up fine. Stone points do fine with it. As it finally breaks down I add it to the compost pile and replace with a new one. Probably not for everyone, but I have lots of room.