From bigclivedotcom.

These kinetic pictures were all the rage in the early 2000’s until there was a recall issued in 2004 due to them posing a fire risk. The official recall documents point to the poor quality of the wiring, construction and flammability.

I’m not sure what bit posed the fire hazard – whether it was the tinder-dry wooden box lined with loose paper, the smoking hot ballast screwed onto a melting plastic panel, the stressed oily motor with paper wrapped around it, the fluorescent tube positioned up against the paper-lined kindling-box or maybe just the flimsy wiring. But I do recall that you could SMELL these things in the shops they sold them in. It was a very distinctive hot electrical "combustion imminent" type of smell.

The fix these days might be to swap the fluorescent tube for some LED strips instead. I’d guess a newer and safer form of these pictures probably still exists.

The conveyor system is very DIY looking, with the strange spring loaded wires possibly being there to hold the ripple conveyor back from the glass to soften the visual effect, or maybe as a crude tensioning system.

These things are quite noisy in use due to their very basic construction with the conveyors making noticeable crinkling noises as they move.

There was another style with a disk of polarising material rotating in front of a circular fluorescent tube. The back of the image had a panel of hand applied polarising material strips that created a flowing effect.

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