This work is by David Gilhooly and was done in the 1960's. He was making fun of the stereotypical still life that you see in art.
These were the instructions that I left for the sub:
Lesson: Silly Sandwich
Paper - 12 x 18
Ask students what kinds of things you usually put on sandwiches.
Show students the pictures of the “silly sandwiches.” Ask them to name the things that they see. Ask them to raise their hands to think of some other kinds of silly sandwiches that they could invent.
Tell them that they will be drawing a silly sandwich of their own. They will be drawing these using black pen on long white paper. When they finish drawing them, they may color them in with crayon.
Pass out paper and black pens.
Tell them to write their names in the bottom right hand corners and their class codes in the left.
They should draw bread at the top of the paper and bread at the bottom of the paper. Then they draw their silly sandwich ingredients between the bread.
As students start finishing their drawings, you may pass out the crayons.
When the students are finished their drawings, let them share their drawings with the other children at their tables.