We hosted a world cup soccer party during the games here in South Africa. Each family that attended had to choose a country to represent. Each family represented their country by dressing up in fan gear (or traditional clothing), a traditional food from that country also had to be brought. We played a friendly soccer game and ended the party off by watching a match on t.v. together.
We decorated the dishing up area with a soccer soccer theme... balloons, serviettes, etc.