This will be the last video I post of one of my trips (for now). I took this one last year, sometime in July, at Marvin's Marvelous Museum in Farmington Hills, Michigan (right outside of Detroit). I was visiting Marvin's Museum because it contains a fake copy of the Cardiff Giant, but the real attraction there is all the bizarre mechanical marvels and coin-operated machines on display. (Though the museum seems to make most of its money from video games.) This video shows Marvin demonstrating one of the machines to me and my wife. If you're ever in the Detroit area, I would highly recommend making the trip to see Marvin's Museum. But bring along a lot of quarters so that you can play with the machines.
Lots of closeups of it in the video, I had no idea that it was a coin operated mechanism, I always figured it was just a complex art sculpture.