Posters "designed" by playing pinball

STYN is Sam van Doorn's design grad project. It uses a pinball machine as a semi-random plotter, which produces "posters" based on the rise and fall of the ball:

A poster is placed on top of the machine, which has a grid printed on it. Based on this grid you can structure your playing field to your desire. By playing the machine the balls create an unpredictable pattern, dependent on the interaction between the user and the machine. The better you are as a player, the better the poster that you create.