If you don't want to tan it here is what you can do. Get a large piece of 1/4 inch or thicker ply wood. Stretch the hide and tack it down to the ply wood. Then take a knife and slowly, and carefully scrape every bit of meat and fat off the hide. Then, when you are done, salt the heck out of it and keep it dry. Let it stand a few weeks and you should be good.