If you get a chance, check out this article that Mike sent to me and to my parents/siblings this morning... this is something that would have been up my Dad's alley (thank goodness he did not think of this!) This Dad waved to his sophomore-in-high school son every morning dressed in costume this past school year. Here is the article:
here is a link to their blog if you want to check out some of the costumes:
here is a picture of the Dad in costume on the second-to-last day of school...