Late but these people fail at even the most basic bullshit.
You don't add a fucking pig nose, you make a very plain doll and use some kind of DNA like a hair, nail clippings, even thread from a suit they wore because skin cells will be on it.
Maybe it's for the best they're too retarded.
You're also supposed to have a ritual to "bind" the soul to the doll as a sacrifice, because something like dark magic takes a lot more than it gives. And if you don't use it right, you essentially forfeit your soul. If you believe in that kind of thing, anyway.