As a kid I spent much time looking at lava lamps in catalogs. The original gold-ish base yellow liquid red wax and then the blue/green version. I remember thinking how hideously ugly and stupid the “Mediterranean” wrought iron one was. I was obsessed with their tag line “The light of a million moving shapes” I spent LOTS and LOTS of time wondering how you would count how many shapes there were. HOW could it be done!?!?