I created this for use leading up to the London Olympics in 2012. It's just a basic PowerPoint, and can be edited to match the numbers of students you have. Basically we held four events - Curling, Cookie Roll, Stacking, and the Oreo Lick. I would have a few rounds (qualifying, semifinals, & finals), and would narrow down how many students could advance through each one.
Overall, it's a lot of fun to do, and the kids had a blast. Enjoy!