Passersby are often solicited in the street to help children all around the world but then they can only see the results and effects of their support. OgilvyAction has created for the association African Angel an innovative poster that shows the benefit of a contribution instantly. With the coin they donate, people can scratch the picture on the poster to make appear a new square. When all squares are revealed, we can see the child who was previously in a street in a classroom with a big smile on his face. A mobile app. has also been developed to scratch the poster. African Angel helps develop the education in Africa. A single coin money makes a difference.