Step 2: Preparing the design
I used GIMP to remove all the horns and the face and lower jaw, then printed off 2 resized images onto the card stock.
These were then cut out, and I worked out where I wanted to cut and where I wanted to fold.
The two side were then glued together at the nose and the general shape and dimensions were worked out.
I used more card to fill the gaps, sticking them in with masking tape.