Well I have made squirrel skin...I guess I will call them recoil pads. Ideally you want to just pull the skin off, not really cutting it at all, takes effort. And one of the better ways to tan a hide, at least that I know is to use deer brains. I suppose any type of brain works, you basically make deer brain stew with hot water and wash the hide in it.
I will see if I can’t find you a link for the whole process in more detail.
I dont have super powers, I have guns.