Computer controller etch-a-sketch robot
Giant nose picker guy powered by a human in a hamster wheel (you can see the wheel on the left)
Human-propelled train car (powered by pedaling). People ride this thing on abandoned train tracks.
Human powered carnival rides. This one is like a ferris wheel with only two seats. Pedal to fly around and around. There were also a pedal powered rotating swing ride and merry go round.
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