They kind of do if you play 6 degrees of wikipedia...

The 'hardware random number generator' link in the list in the article goes to https://en.wikipedia.org/wiki/Hardware_random_number_generat..., and then in the see also section on that article there's a link to the page for a different lava lamp wall, with a photo of the cloudflare one: https://en.wikipedia.org/wiki/Lavarand