We found out from my uncle a way to save money on chews. Buy one of the really big rawhide chews from pets @ home or similar, they cost about 3 or 4 pounds, and boil it in a pan (we added a beef stock cube for flavour). Once its totally soft, seperate the different layers and cut into smaller pieces. Let them dry, this takes a couple of days. And there you go, Seven or eight chews, and much cheaper than buying them seperately! Hope somebody finds this useful.