When I get stuck I do quickie drawings to loosen up my mind and keep my hands moving. I give myself a time limit of 15 minutes to create a little monster in Illustrator, and I don't let myself stop drawing until the timer goes off. It's a totally different way of working than I usually do - it makes me think quickly without researching any reference material, and it forces me to stick to simple shapes and simple processes.
This set of Fifteen Minute Monsters is a small collection of the most recent ones I did on a trip to Provincetown. I think I was inspired by all the sea life.