I'm trying to make a list of good ways to start drawing when you feel like you have no ideas. Please add to the list if you think of a good one!

24 Hour Comics. I did one of these last year, after doing a very minimal amount of drawing in the 3-4 years prior to that. The comic itself is poorly drawn, but working on it for 24 hours straight gave me the boost of drawing adrenaline that I needed- I've been drawing a lot more since then. The 24 hour format also caused me to experiment with some styles I hadn't used previously which was definitely a good thing.

Music. When I'm really hard up for some drawing material, I listen to a cd and do a quick thumbnail sketch based on my reaction to each song. Sometimes there's a story, sometimes it's just abstract shapes. I pick the most promising and draw something more in depth.

Two Ideas Combine. Ask two people for ideas on what to draw. Combine the ideas into one concept. It's almost guaranteed to be more interesting than either concept would have been on its own.

Okay, those are my main idea-getting (and motivation-getting) standbys. Does anyone have anything to add to the list?