In Septemer into OCT all Costco and BJ's have for the past 5 or 6 years had Disney Princess costumes for Halloween. While I do not have any girls, I always think that if I did I would buy one of these costumes (which btw are MUCH nicer quality than the Disney ones) for 29.99 and let my imaginary daughter wear that to the park.Some of them came with accessories but they also had crowns and high heels to purchase seperately.
If you are in Orlando in OCT I know Bjs or Costco down there has tons of them. In addtion, I would make my imaginary daughter up MYSELF so I know that the make-up and applicators are clean. I know i could do this for a LOT less than BBB and do a much better job BTW. They also had pirate costumes at BJ and Costco too.
Alas I do not have a daughter but two grown sons so now I am going to have to hope that I can dress my imaginary GRAND daughter in this manner provided I am not dead by the time they get married and have kids. LOL