The classic Russian stacking dolls have been around for ages, and kids never tire of them, generation after generation. If you're nostalgic for these dolls, the new Mathmos Babushka Light might strike your fancy. It's Babushka with a modern twist, Russian dolls meet lava lamp. The light, which sells for $75, is made form mouth blown glass and mirror coated plastic, and the LEDs change from red to blue. See it in action here.

Just what is it about that shape that calls to me?