Don't rework them too much, it's easy to go too far and wreck That Certain Something. I remember a song called Orange Barrels that was played on The Bob and Tom Show a number of years ago. The writer had come up with the song and performed it on the show. Catchy song, cute and simple. Got popular, he did a "professional" version of it, overproduced it, and it just wasn't very good after that.