So we played dress-up. Catherine wore the Belle dress (from Beauty and the Beast) that she just got as a reward for kicking one of her, uh, nighttime habits that we've been trying to extinguish for a while. (Fortunately I was able to get it cheap on sale from Disney).
She loved it. The only drawback was that she kept insisting that I was the Beast all day, and that I had to dance with her because she was wearing her beautiful dress.
Don't let the demure appearance fool you. Shortly after this she transformed into Catherine Power Princess who was a superhero who was going to fly off to rescue someone from the volcano.
Versatility is good.