
British lighting firm Mathmos has gone back to basics with a brace of new designs that flip the bird to flipping the electricity switch and use tea lights — yes, those things you buy from IKEA in bags of a squillion because there’s nothing else in the store that appeals to you — to heat up the lava. One tea lamp will give you three hours’ worth of languid Barbapapa bubbles
This is amazing. I’ve often found myself wanting to build a giant lava lamp, like 6 feet tall, but I’m always shot down by the voice in the back of my head telling me that I’ll just burn my house down. Here’s an option that will promise destruction.

