Make it a challenge to draw most or all of these. Use as inspiration to take photos of themselves with their phones. Draw onto tracing paper or acetate, try layering, continuous line, blind drawing, left hand etc to build portfolio
Francis Bacon- The only artist to date that has actually made me feel a visceral reaction to his work. I actually had to leave his exhibition at the Met because of the anxiety it brings on. Just amazing.
Mapping 2013 on Behance Use a process like this for "identity/self-concept" activity about skin color/shade/tone/palette. Put vertical photo strip of every child together on a couple images to make a collective face.