Sit 'n Spin

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Sit 'n Spin is a famous toy of the 1970s and 1980s. It features a large circular two-part plastic base. One part is in contact with the ground, and is connected to a smaller concentric plastic disk above it. The other part of the base, another concentric circle, is free to spin about the axis. A child sits on this part of the base, cross-legged and straddling the pole, and turns the disk, spinning the child in the other direction.