Get a collection of games including “World of Goo”, “Gish” and “Aquaria” and pay whatever you want for them. The idea is that the games will release their code, people pay what they want for them and they can choose where the money goes. The choice is directly to the developers, to charity or a mixture of both.
It’s a really cool project and you can read more about it / buy the games using the link below.
The Humble Indie Bundle