Pretty much every year I post about what my old Spring madness is up to, even though I've been threatened with legal action should I come to Chicago to participate personally.  I live in Scav Hunt vicariously through the listhost, and I was blown away by this.  One item required a movie trailer to be created for each team of the world's largest and weirdest Scavenger Hunt (at the University of Chicago)... narrated by Don LaFontaine.  The team I align with ACTUALLY FUCKING DID IT.  Here's the result: 
http://www.forge22.com/FIST/Don%20La...Sun%20Gods.mp3 .
The Hunt's website, if you'd like to see the full list, is online at 
http://scavhunt1.uchicago.edu/lists/list2007.pdf .