At Iowa State: Polar Bear Plunge.
Raise $50 towards the Iowa Special Olympics and you get to dress up in costume of your choice and jump into the lake on campus (in Iowa that means the water is 45-50 degrees).
http://www.iowastatedaily.com/vnews/...8?in_archive=1
http://www.iowastatedaily.com/vnews/...6?in_archive=1