I like the idea of Top Hat (I saw the show twice in London and it's become one of all my all-time favorites), but I feel like they would perhaps make a reference to the feather dress, and/or "top hat and white tie and tails" instead of just the tapping feet. Just a thought.
Another thought. Papermill is pretty established as an out-of-town tryout for new shows that hope to come to Broadway. Wouldn't is be likely that at least one of those is something that's currently in development, something that has currently had a reading or workshop (or lab)? Everyone so has been listing existing shows, either classics or London transfers...