In one campaign, I had an evil cult worshipping a god known as "Fructus de Cera". Basically, he was the god of wax fruit. This was an in-joke based on someone's side comment about a god of wax fruit but I've totally forgotten the context since it has been 30 years since then.

The god had a depressed, nihilistic point of view, based on the notion that everything good is basically like wax fruit. It may look nice to the eye, but it's not what it seems to be. Everyone and everything puts up a false front, appearing to be something far more satisfying that what it truly is.