British company Mathmos Lava Lamp | Cool lava lamps, Lava lamp, Blue lava lamp
New Mathmos warming up. Silver base, purple liquid, red wax. Rewired to 120 with a 40W R14 bulb. "Normally curtains closed with blackout curtains so nothing will fade." : r/Lavalamps
Mathmos Neo Lava Lamp for Children and Adults | eBay