Lichtenstein inspired portraits (there are several examples)
Dot-Painting - Exotisches Chamäleon
Quick Lichtenstein Pop Art Portrait Lesson for the end of the school year. Handout has pre printed dots. They just draw, sharpie, and color.
Eighth graders did this....I need to get my high school students to do something this cool!
Could do similar idea for a sub- have kids name their own color tube and illustrate in the paint spot.