I think it would be great to enjoy the evening, if not as a princess, as a modestly dressed cowgirl. With a cowgirl hat, big belt buckle on a wide belt on jeans, and maybe a lasso? Not as a "naughty cowgirl," just an everyday cowgirl with some nice boots and western wear.
The Star Trek original series female crew member idea is a great one Alaskan Danielle.
Chrissy