I'm a little late in pointing this out, but They Might Be Giants have released a video for their contribution to the considerably-better-than-the-hipsters-might-expect Disney Music Block Party compilation, "Ballad of Davy Crockett in Outer Space."
The song is a decidedly odd updating of the theme song, but the video is totally low-tech in the best way.
They Might Be Giants - "Ballad of Davy Crockett in Outer Space"
Yes, that's a real chalkboard. Want proof? Read all about the behind-the-scenes process here.