I made it using a barrage of random mechanical and simple shapes. I made it for my brother for a Christmas present and when I asked my librarian if he could print if for me, he not only agreed to it but told me that I should enter in in the media expo, initially I wasn't going to enter anything but he told me about the entry and I decided. ok.
Directions for viewing entry:
Click the button for the full size photo or complete project.