Here is a motorized lamp that creates cool swirling patterns in the dark. The Rabbit Tanaka Mystic Lite Cloud Sphere Lamp has a convenient speed control mechanism. It is powered by a 6V adapter. These were made available in various colors. The below video shows the red version in action:
More gadgets like this: here
Rabbit Tanaka Mystic Lite Cloud Sphere Lamp -- Gadgetify
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