If comic books don’t strike you as great fodder for philosophy and ethics lessons (and that post had a comment from the author who wrote Batman and Philosophy and is writing Spiderman and Philosophy (which was pretty cool)) then perhaps Pooh and Philosophy is more your thing. This is from a list of philosophy books for children.
“Plot: Drawing on readers’ assumed familiarity with this beloved cast of characters, lead by none other than Winnie the Pooh, Hoff demonstrates the basics of philosophical Taoism by making examples of the One-Hundred Acre Woods residents. Each character embodies some basic principle of Taoism. Pooh is portrayed as the Uncarved Block with innate powers due to his natural and unspoiled simplicity. The rest of the crew is also interpreted per Tao principle – for example, Knowledge for the sake of Appearing Wise in Owl’s case.”