This list from Tor.com has SO many of my personal faves (Totoro, the Lorax, Tom Bombadil?!?!).

The Ents count among Tolkien’s Green Man stand-ins as well, but old Tom Bombadil is certainly more… interesting. Left out of the LOTR films to the dismay of many fans, Bombadil doesn’t serve a plot purpose in Fellowship of the Ring, but he sure is fun to run into as interludes go. With his fancy lady of the river, Goldberry, and his odd yet powerful tunes, Bombadil gives the hobbits a place to nap after saving them in the Barrow-downs by frightening off a few nasty wights. With his home in the Old Forest, Bombadil remembers events on Middle-earth that no other living being can attest to—it would seem that he has always been there, and always will be. With abilities that no one quite understands, Tom stands apart from the rest of Middle-earth’s people, with Gandalf going so far as to say that the One Ring would hold no temptation for Bombadil… but he might simply misplace the darn thing.

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