My fIrst fave Is the one where thIs guy Is drIvIng a car whIle a background voIce sIngs about the many thIngs that begIn wIth I. If I remember rIght the man In the background had a slIghtly brItIsh accent.
I also liked the one where the boy riding the bicycle gets lost and winds up seeing all these crazy things and then meets a man with a yo-yo who turns into all of them and tells him how to find his way back home. "Try to remember everything you passed, but when you go back, make the first thing the last." I still use that method when I'm going anywhere new to remember how to get back to where I started.