Hi Amy! Thanks for coming back with another question! My daughter's favorite cruise memory was being transformed into a princess by the Fairy Godmothers at the Bibbidi Bobbidi Boutique on the Fantasy. Be sure you've got your camera ready when they turn your daughter around to let her look in the mirror. You won't want to miss her reaction!
Although schedules are always subject to change, St. Maarten day on the Fantasy tends to be Pirate Night, so that wouldn't be the day to schedule a princess makeover, because you don't want her to miss out on the opportunity to dress up like a pirate that night. Unless, of course she wants to be a pirate princess, in which case the Bibbidi Bobbidi Boutique becomes the Pirate's League that night. The first Sea Day of your cruise is usually Formal Night, which would be a great day for your daughter to become her favorite princess. I'd suggest booking her makeover for that afternoon so she will be all dolled up for Formal Night!
My fellow Disney Cruise Line Mom, Nancy, has a video on the Disney Parks Blog of her daughter's
Bibbidi Bobbidi Boutique makeover on the Fantasy. It'll give you a great idea of what to expect.
Come back if you have any other questions, Amy! Happy cruising!