Yeah this is an awesome idea, i hope it gets made. but i was thinking like, if you decap an enemy you could collect his head from the ground like a item ie a sword or potion yah know?. but if you simply kill your enemy you could hack at his head and cut it off. kind of like how it is in Fallout 3 or NV. you take it home, put it on a pike or what have you and eventually it decomposes into a draugr head and finally a skull if you've had the head for a while. If they're going to decompose, I'd like to preserve heads in jars.