One barrier that stops people from being more charitable is the fact that one can hardly see where their money is going to end up.
This outdoor interactive site, aims to solve that, allowing you to scratch the picture of a poor African village until converting it in a classroom. The trick is that you need to donate the coin that you use to scratch the poster, therefore contributing for real to changing the lives of the people in the image.
A simple game-like mechanic can boost participation. There’s also an app for that too. Done for NGO African Angel by OgilvyAction Dusseldorf in Germany.