Manchester City vs Manchester United. Well, those who follow the English Premier League know who win in the last game that they played against each other - Man City won 1-0.
Since Euro 2012 is ongoing now, I reckon this is a good idea for tip box for any shop. Just display different teams' names daily, according to who are playing on that day.
Or they could ask, "Who will win the Euro 2012?' and put up a couple of jars/boxes with different teams' name. Cheeky ideas to get more tips!
So, where will your money be?