This is what happens when I'm randomly doodling and a news clip comes on TV of the police knocking down a guy in a Frosty the Snowman costume.
This started out as a doodle, but then I just couldn't stop. Then I thought it would look better with a watercolor wash. In this exercise, you pick 10 or 12 different drawing implements like pens, crayons, markers, pencils and so on, and use each one of them somewhere. This forces you to break out of your comfort zone and you end up using nontraditional colors in places.