I've got a few possible verses put together for the Song Fu challenge, though no music as yet, but my research into Jaws and the history of the film and book has given me inspiration for another new song. I did think about making it the challenge song, but it is a couple of steps away from the plot of the film and too serious to be done as a 70's movie-pop song.
The off-shoot comes from the story told by one of the film's characters, Quint, in a monologue not in the book and apparently substantially ad-libbed by actor Robert Shaw, about the sinking of the USS Indianapolis during WWII. Having read some actual survivors' accounts of the event, there's a lot more to the story that resonates with the best and worst of human character. I'll elaborate more about it soon, once the Song Fu song is done and dusted and I can concentrate on bringing the story threads together in a way that makes sense within a song.