I had one of the best moments of our trip when my DD, then 3.5, met Princess Aurora. There is a show in the MK and I totally forget the name. Something like Sleeping Beauty's party, but I am really not sure of the name. Anyway, the show happens a couple of times a day and it is held in the little court yard behind the castle. It is in the area right outside the store called, Tink's Treasures, and also right when you exit the castle where the BBB now is.
The show features some other face characters and they present Princess Aurora and Prince Philp. They do the show with the children participating ( your DD would love that part!!) and then they do a meet and greet. When you are facing the stage the meet and greet is held to the right of the stage, right at the end of the show. I had been given a tip to get near the front of the line and it worked like a charm. I was third in line so by the time by DH brought our DD over we had like a two minute wait for our turn. You line up against the wall and have your camera ready. I do recall that this meet and greet was no autographs, but the meet part was fantastic.
My DD was really shy, but she went up to Princess Aurora and Prince Philip. They both kneelt (sp??) down to her level and had a sweet little talk with her. THen they posed for several photos and Princess Aurora kissed DD on the cheek, leaving her lipstick imprint on her face. It was the most treasured moment of our trip.
Good luck and have a wonderful time. Oh, if I did not already say it, check the daily listing of show times and the show will be on it. It is not a big show, but it did last about fifteen minutes.
Suz