When our ds was little he was picked to be in the parade twice. Not like the grand marshalls, but he got to interact with a float and characters, I think it was the lion king float or something. They picked a certain amount of kids to do it and gave them like instruments or something. We got there really early, which we do anyway to line up for the parade, this happened to us twice in frontierland, by the country bears, we talked to the cms before they started putting up the ropes, not to ask to be in the parade, just talking about the park, general stuff etc, I had ds dressed up in some cute mickey shirt or some disney thing and gosh, I must say he was really cute anyway. I dont know I totally didnt even expect it, they asked and he said yes, I think one of the other ds did it too. I actually saw one mom push her kid up into it and she was not even invited by the cm. Hope some pixie dust falls your way.