[hilbert42]

Thanks for the link, tragically, it only illustrates the point.

The last time I raised this matter I also mentioned neon light transformers which are also used for creating Lichtenberg figures. It's likely that these transformers are even more popular for that purpose.

They're also very popular for producing Jacob's ladder arcs, there's any number of videos on YouTube about them.

Neon light transformers are also extremely dangerous as they can easily deliver several hundred mA across one's chest. At that current one's pretty much history.