Most of the head is made from 1.5mm diameter wire. The teeth were made by adding solder, and then removing the soldering iron at just the right speed to allow the solder to cool in a little cone. This was done before attaching the lower jaw to the skull. (The jaw and the front horns are formed from one piece of wire.) As you can see, vertebrae were constructed individually and added one at a time. (this took a while)