No, I havent.
Of course Ive sucked the heads of mudbugs.
Ive done the squirrel brains and scrambled eggs thing.
Usually I make a squirrel barley soup or fry them a bit before simmering them with wild mushrooms and making it a sauce for going over wild rice.
I dont personally know any prep methods and recipes that create a suckable squirrel head.
We didn't hang near him when he was eating.