When I say "yourself," I mean "whack a tealight candle underneath." It's certainly more DIY than plugging it into a wall socket and flicking the switch. One tealight is good for around three hours of '70s-style fun.
The Fireflow 01 is available from Mathmos for $69 / £35. [Mathmos via 7Gadgets via CrunchGear]
DISCUSSION
Has anyone ever broken a regular lava lamp? The smell was so horrible I gagged a million times trying to clean it up. Always wondered why.....