[bluefish81]

Iowa State's FIJIs do FIJI Island every spring.
There used to be a lot more themed parties, but I don't know how many of them are still done at ISU. Kappa Sig's had a Jimmy Buffett beach party type theme, Phi Kappa Theta had a Tiki Tiki party.
The Theta chapter doesn't use the same theme for house party each year, however there is one tradition that we keep: it's always planned by the senior class and the theme is kept a suprise until shortly before the event.