A little off beat - our club was invited to a museum in Prescott to set up tables and run trains. Part of the setup was a 'track' ramp made by a club member. Three cars are suspended at the top. Once a bar was lifted they would race down the track. at the bottom was a sensor. The first car that hit lit up a red light. I was getting tire just watching the kids running back and forth to race then set up the cars again. I'm in the far left corner probably dozing.
