Art student Sam van Doorn deconstructed a pinball machine and reconstructed it as a design tool he calls STYN. The finished design all depends on your level of interaction with the machine.
The guys behind this LEGO machine are real pinball wizards. It’s built from ~8000 LEGOs, including 6 NXT robots, 9 touch sensors, 10 light sensors and 4 motors. Only the ball isn’t a LEGO part.