We did a surprise trip for out DD at her 14th. We always talk about Disney around the house, always trying to figure out what we would like to do on a trip, so we incorporated a "Would you rather..." game into the discussions. We asked things like "Would you rather have breakfast with Pooh or the Princesses?" "Would you rather ride Pirates or Maelstrom?" just kinda all over the place with questions and everyone answered, myself, DW and DD. We did the game for months before the trip. Our fly out date, because we don't drive from Texas, was actually the day after her birthday, so we did her party the weekend before. We talked to her band director to clear her absence with him, informed all the grandparents and friends, and everyone kept it a secret. At her party, we gave her the first gift (not one of her friends) that was a card with her Key to the Kingdom in it. She still had a week to revel in getting ready for the trip, got to celebrate with her friends and enjoy the buildup of that last week. For the trip itself we kept the daily plans secret, but had made up a envelope for each day that had the park that we were going to and basic food itinerary. We were able to set up a window seat for Coral Reef, and had the celebration menu set up in advance for her. It was a great trip, that she DID get to help plan, but didn't know that she was doing it.