gear skull and it's been sitting on my desk at work for a while. At work they decided to use the same print to show off their fancy Stratasys 3D printer, only they made theirs in black. And wouldn't you know it, the parts are interchangeable. It shouldn't be a surprise considering they used the same model, but I've always been concerned that my 3D printer had some sort of problem with it's steps or something and that it's always printing things a little too small. But it turns out they're not far enough off to make a difference.
I tried to convince them to let me keep one part, but they wanted to keep the set together. Still, it was fun to play with them.