Designer Wallpaper Skulls

I recently received a large wallpaper donation at my school, and have decided to show the students how to cut out “designer” skulls.
1. I will give the students a sheet of wallpaper approx. 8.5" x 11". They are to fold it in half the long way, and draw 1/2 of a skull on the fold, making it as large as they can in both directions. The skull is basically an oval head with a narrow chin.
2. With the skull still folded (right sides together) they draw one eye halfway down the skull, half of a triangle nose, and half of some shape of mouth. These shapes are all cut out, still on the fold. For the eyes, I just cut straight over to the eye, and then around it. The slit that was made disappears when glued down.
3. The skull is glued down to a sturdy piece of white paper with a glue stick. I want the students to then color in the background of the skull with Sharpie makers, repeating any of the design elements they see in the paper.