Design a facebook application. Check out world cup soccer fixtures on this page (first stage).
http://www.fifa.com/worldcup/matches/index.html

Create a tipping competition that allows people to pay $2US to enter, select who will win, draw or loose and the scores for every game in the first round. 

The winners from the first round will have to log in and choose again
Finals - 
http://www.fifa.com/worldcup/matches/kostage.html
1. Need to create a member profile, then they need to submit the tips and make a payment of $2 when they sign up before they play. We will have a scoring system that allows us to add up when someone makes the right choice, and also extra if they select the right score.

More specs available when you apply.