I had never paid much attention to the "hidden Mickey" threads, but when we were waiting for Epcot to open, we were chatting with a family who had a hidden Mickey book. My DS14 (my Aspie) was very interested. We bought the book and for the rest of the trip, he was our guide to hidden Mickeys. If you are traveling with a person with Aspergers or mild autism, this just might become one of their interests! 
