I'm a tremendous fan of Rankin-Bass's production of the Hobbit. I saw it when I was very young, and it still impacts the way I view fantasy today.
I'm aware that, outside of a few surface level trappings, the influence on Tolkien on D&D is debatable, but whenever I think of wizards I think of John Huston, and whenever I think of goblins I think of those fat gray things.
I've always liked the art style. It's dark and whimsical at the same time. I shall be trying desperately to bring that across in my portrayal of the Nightwick setting.
Other, more usual, influences (CAS, Leiber, etc.) will be present, but I haven't seen anyone tackling this old thing. Maybe it's because I'm the only one who likes it.