We are about to embark on a game to show probability. Here are some links that can be added to your Google Site Page.
http://www.random.org/dice/?num=5 Change the number for the amount of dice.
Playing Cards http://www.random.org/playing-cards/
You need to create a game of chance where the player gets rewarded for spins or rolls. Rules and instructions for your game along with the probability for each event are necessary. The more difficult the event the higher the reward.
More to follow.....
Here is a Wheel of Sports