Giving them to ratties would be a terrific option too! I wonder, does pressure cooking only work with chicken/poultry bones or if you do it long enough, can it work with heavier bones like beef/pork ribs? I ask because I have access to a LOT of cut up bones that are extremely cheap, but they are primarily for soup and aren't of great nutritional value to my dogs when they are raw, as they can't really eat the whole thing. However, the bones are seriously like $1 for a few pounds of them, and if there's some way I could turn them into a more complete, nutritious meal for the dogs I would. I'm broke and raw feeding is expensive sometimes.