I worked at Spencer Gifts for a couple years in high school. I was surrounded by lava lamps. I probably still have the SKU number for them stored in the back of my brain (had to key in numbers by hand--yeah, I'm old!)

Also, my T had one on his desk for a bit, but don't think it's there anymore? (As I said to T recently, I'm very observant about people, like about what they're wearing, their body language, etc., but I'm not at all observant about decor.