Singing songs with sign language is something I've tried to do in the past, and I'd like to try it again now. Someone suggested "The More We Get Together," which would be a great one for babies to learn, because it has the all important "more" word in it. Here's a version on youtube I'll be studying: The More We Get Together. Since some (most) of you sing MUCH better than I do, feel free to take a look and start practicing!
The More We Get Together