Here's a video (uploaded on my YouTube account in 2 parts) that I myself had made when I visited the Alternative Energy Fair about 8 months ago. Part 1 of 2: http://www.youtube.com/watch?v=bWRFJvZEgIU Part 2 of 2: http://www.youtube.com/watch?v=V_S1JZmwMF4 So please do let me know what you people think about it.