If you're working on an animated character, work through Lesson 5 (Building Salty). If you're modeling background scenery, work through Lesson 11 (Polygonal Spaceship) and Lesson 12 (NURBS spaceship).
Hand-in your model by adding a brief text description of your model to your team's swiki. Your description should say what the model is, explain why it looks the way it does, and outline the enhancements will need to be made in the next few weeks (texture maps, skeleton refinements, etc.). Include a pointer to the files for your model and a rendered image of the model.