I decided to carve a dog.
Since William LOVES Scooby, (at least he loves "saying" Scooby, or "Dooby doo") I decided to do Scooby. I started it last night, but got sick of carving it halfway through so I finished it this morning.
John also carved my little pumpkin I had for decoration. He did a scary ghost-face. I think William was pretty impressed with both of them. Not sure he recognized Scooby, though.