Mike;
I hang it using a fish hook hooked into a piece of skin at the cut rump end. That way it hangs straight as it dries. I just leave it hang in my fly room for a month or more, then pack it away with my other squirrel materials.
Be aware of your local wildlife rules though, for some have certain restrictions regarding possessing such. AND NEVER pick up any animal w/o wearing disposable gloves, for you never know what it might be carrying.