Reader synapselapse had this made for his family's tree. He says:
This came from an episode of Big Bang theory. They observed that Dec 25th isn't actually Jesus' birthday, he was most likely born some time in Sept, but it is Sir Isaac Newton's Birthday. So it makes more sense to put him on the tree!
My wife thought this was awesome since we're trying to establish Christmas traditions that are dictated by our lives, not our parents lives.
I approached a friend of mine who's a very talented artist about the project. He liked the idea and agreed to take it on. The tough part was getting it to look nice without being unnecessarily flippant. It's a wire armature covered in Sculpy, then painted white with a finishing layer of varnish.