We sang Children All Over the World last year and since it was QUITE a bit of work, I'm going to be using it EVERY year for Thanksgiving. The kids thought the posters were pretty fun and funny! Find the lesson plan HERE.
If you are looking for more Thanksgiving ideas, look over the right under my "Thanksgiving" tab and there'll you'll find a few ideas posted there. If you scroll down far enough, there is a post with several Thanksgiving suggestions that someone on Yahoo Groups posted last year. One of the suggestions is a Thanksgiving sing-a-story which I will be doing next week, right before Thanksgiving.