The ARIS online community is running a contest until the end of November to get people started with process modeling: create a process model (using their free downloadable ARIS Express process modeler, of course) that falls into the category “BPM is useful” or “BPM is fun”, and submit it on their site. I’m not sure what you do if your process is both useful *and* fun. 🙂 The winner in each category will receive an iPod Touch.
You can also vote for your favorite model in each category. You’ll need to register as an ARIS community member to submit a model and to vote, but you can browse through the models without registration.