Assuming that what you have are still attached to the lower legs, you can put a pot of water on the stove...(oops..better take it outside, your wife`ll appreciate that) over the fire, bring the water to a boil, stick the toes (& possibly the dewclaws as well) into the water for a couple minutes. Grab hold with a pair of pliers & try twisting them off the leg. They should come off pretty easily, but if not on the first try, give `em a couple more minutes in the water. Dewclaws & toes can be used for rattles, or pull tabs for the thongs on a pouch. You could cook them to make hoof glue, but you`d be better off going to the grocery store & picking up some Knox gelatin... it`s the same thing & easier to get consistant results with.