The Kaleidoplex Light Organ, a kaleidoscope projector invented in the early Seventies by Marshall Yaeger to create a visual accompaniment for organ music performances.
The image [the Kaleidoplex] projects can be described most accurately and scientifically as an irregularly pulsating and continuously changing octagonal star or circular rosette centered on a circular field of smaller kaleidoscopic patterns arranged octagonally around — and related in colors and shapes to — the center. Sometimes the image devolves into from three to eight concentric, octagonal rings with alternating orientations to the vertical.
See it in action here. There are DVDs available.
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• Lapis by James Whitney