This is a fun little gadget — available from ThinkGeek, that would look great in any home or office setting.

From the site: ”

The Lava Lamp Night Light looks great plugged into any wall outlet. A flip of the switch and science takes over. The wax is slightly denser than the oil it lives in, at room temperature that is. Once the light is on and the wax starts to heat up, it becomes slightly less dense than the oil and it rises (and then drops as it cools). There’s a lot more science behind it, as to what determines the size of the blob and the path of its upward voyage, but the important part is that it’s groovy. Peace, man.

Your choice of Red or Yellow “lava.”"

A very affordable $8.99