Diamonds in the Sky
This gets preeeetty trippy, so definite seizure warning.
On a very bored afternoon in 2012, my father and I decided to re-create an experiment I’d seen at the Physics Olympiade: a camera facing a TV set, where the camera is connected to the TV - so on the TV, you’ll see a TV in a TV in a TV in TV ....
If you tilt the camera ever so slightly and start using zoom and a couple of effects, this is what you get. It's not only a Chaos Theory experiment, it's also pretty darn cool.
Enjoy the fractals.