If you ever feel like drawing but cannot think of what to draw, you should use the Brainstormer Application. It was created by Andrew Bosley and turned into a flash animation by John Michel. You can read about its creation HERE.
You can click on the "Random" button in the center and it will spin around and land on a series of words (emotion, conflice, subject, adjective, and/or style) that you put together and illustrate. Instant idea generator for a new drawing or painting.