The door knocker would be a cool skull to build. MIG, and my forge is propane.
I don't have the patience for a coal forge. I have had several of them, but it takes so much time and effort to build the fire, and keep it going, I don't have the time to build what I want. With Propane, I have good heat in 5 minutes, and when I am done, I shut off the valve, and go on.