OMG that was funny, for some reason. Three parts I liked best - when the CD hit the skateboard, flies up, and then just tries it again, the part where it just hits the door and just keeps bouncing and smacking into it, and that goldfish bowl one where it just keeps on spinning. Those things must have a lot of energy stored in them; maybe he should oil the edge of the CD before doing that - it might just keep going even longer, provided any oil sticks through the incredible G-forces experienced.
Reading over that page; my god that's an intelligent and motivated person. Very impressive.