I have done this project several times and the best looking finished product
happened when we mounted the mask on the back of a box like the cans come to
school in for the drink machines, then used more gauze to cover the box
closing the gap between mask and box. This creates the illusion that the
face has grown out of the box....each time I'll think of some assignment.
One of the best was when the student chose one emotion or two opposite
emotions and designed the decorations accordingly. The mask doesn't have to
be mounted squarely in the middle of the box....then I give the students the
run of a bunch of supplies from paint to feathers...whatever I can spare.