I particularly like the milk stream. And the S.Q.U.A.T. Team. Kids aren't self conscious (well, not most of the time), and they're always putting together the world in fascinating ways. Like Saturday, when my four-year-old tasted chives plain. He decided they tasted sort of spicy, and started listing what must be in them. He started with "fireworks" and worked his way to "bone" and "green blood."
I can honestly say, I've never had a more interesting potato.