A little while back I created some zombie ornaments for fun. It was inspired by the GWAR ornaments that +Cliff Roth had previously painted. They were a lot of fun to make and I've since made them available in my store.
These are created on a blank ceramic ball which is heavier than it looks, but very sturdy so you know it won't shatter if its dropped on a carpet or anything. These were painted with watercolor and drawn with black and red inks.
They look pretty damn cool on the Christmas tree.