Get ya some eggs in a bowl with just a dash of water and spead on them hides,let em soak in the fridge in plastic 2-gallon ziplock bag until they are not hard,hard any more and go get one out and start rubbing and squeezing and kinda wringing on it,it gets a little dry,more egg and more working,when it is soft and dry,its done.When all five are soft, Give them a little cold smoking and it will not react so much to moisture. Result is excellent leather,beautiful fur on muskrats. ' Frank