For fun, I detached the bottom of the hem, added a strip ruffled on both ends, and reattached the hem. In retrospect, this technique might have been better featured on a solid colored dress, but I'm a fly-by-the-seat-of-my-pants sewer.
Little V hasn't tried it on yet; I'm hoping it hangs well. 30 years from now we'll look back at Christmas photos and laugh you dressed me in that?!