Yippee! Finally someone is going to make this item. I was going to try, but I'm not good a modeling at all unless it's made up entirely of primitives. Since I came into the Doctor Who scene with the Tom Baker episodes, I'll vote for the one he used. I still laugh at the version in one of the later episodes where the Doctor (which one was it, I forget) hit his fist on the console and the red ball popped off the lever. Melanie