We are doing something similar for our daughter next year. Here is what we have going on. We are going to make up a gift box, with a Magicband, pins, first trip button, a shirt, ears, and who knows what else. We are also going to hire an actress to play one of the princesses and deliver this package to her on her birthday. We oddly found this princess service in Michigan and love the idea of this happening. She will get the gift in early September and our trip is the end of that month. So it gives us some time to go over a lot with her. I had initially thought of surprising her the morning of the trip. But for this being her first time down there I didnt want to totally overwhelm her