What is the best lava lamp? It seems that no matter how much culture changes, there’s always a demand for the retro, which is why the playful visuals of a lava lamp never seem to go out of style.

If we got a mobile phone charm for every phone charm we ever saw, then we'd have a lot of phone charms. Most don't pass the Crave test, which is why you never hear about them. This one from Mathmos, ...