This site might help
http://www.stuorg.iastate.edu/greekweek/
We're doing a bunch of things, like, BBQ for all Greeks (I know that sounds unfair for the rest of the non-Greeks). That's on Tuesday.
The highlight is the Lip-Sync competition.
At Saturday, we're having Greek Olympics, the Tug-O-War, Egg-Joust, Veggie-thing, Bed-Race, Canoe-Race etc.
Also, we're doing Polar Bear Plunge at our lake in the campus (Lake LaVerne). We're collecting 50 bucks per person, and we're jumping into the icy-cold lake! It was freezing last year! Oh, well, we're doing it for the kids (Special Olympics of Iowa).