Tesselated Triangles and Skull Illustration Above are the process sketches for a recent skull illustration of ours. The images show the drawing stages from initial concept doodle in my Moleskine sketchbook all the way to the final drawing. This design will be making an appearance again soon on a new MFF product. But what shall it be, print? Or t-shirt? Hmm, time will tell (decided during the course of a whisky debate) This skull illustration, featuring tesselated triangles was hand drawn with fineliner pens.