I made these in less than an hour for a class example to get the students started.
Wow, it was pretty refreshing to make something so quickly and not brain myself to death over it. Watching my students work, I see myself in them, wanting to make a Magnum Opus in every little thing we do. Doing these exercises was a reminder to let loose, break free and not be afraid to mess up.
I had a professor in graduate school, Bill Willis, who taught me, "What's another word for "shit?" I scrambled to come up with different iterations of the word - crap, poop, excrement, dung. . . . "Manure," he said. "What does manure do? It helps things to grow, gives nourishment. You have to make the shitty drawings in order to make the great ones too."
What can you come up with in an hour??