My project idea is a 'green light' which funnels light from outdoors to a flowerpot during the day, and stores this solar power to light a lamp in the base of the flowerpot at night. Here's a SketchUp sketch:
The course archives everything with mercurial version control. At first I was completely bewildered by how to use it. I found Kenny Cheung's notes very helpful, and also the course mercurial notes.