I like how drawing and photography was used at the same time. Although this was tried a lot of times, the fact that both types (photography and pencil drawing) can be used helps widen the possibilities for a design.
Give students a photo copy of a Converse shoe or some other shoe style and have them design the shoe and then do patterns in the background - good color theory and pop art lesson. Alternate patterns on shoe and plain background with the opposite.
from-student-to-teacher: Fantastic idea! As an end of the year gift buy students beach-balls, they collect classmates signatures. they have a “ball”! Great idea for next year at the end of the year. They could write other things too.