My apologies Lauri!
Here is the idea:
I want to build a massive rock paper scissors tournament, the largest the world has ever seen and one that no one can stop. I imagine re-purposing bitcoin-qt to do this.
Imagine a tournament like the World Series of Poker, but for RPS.
Each person plays a best of 5 tournament each round. The players are randomly matched against each other. The number of rounds would effectively be the depth of a binary tree...
So if a million people play in this tournament, you would need to win 20 rounds to win the tournament and the cash prize.
Now, I will supply this cash prize and I have media connections to get coverage for this. I fully believe I could get millions playing in this.