Okay this one is really cool. It’s a lamp constructed of colored Tetris blocks! The blocks can be stacked any way you like, as long as they are in 90 degree variations, and if they touch each other, they light up!
ThinkGeek’s description, as you’ll see if you follow the links, voices a concern that many of you may have. What happens if you stack the blocks in a solid structure? They’ll disappear, right? Well, rest assured, they will do no vanishing, or point-giving, only lighting.
If you know somebody with OCD, this is your chance to build some lamps with gaping holes and blatantly poorly placed blocks, just to drive them mad!
As far as how it works, I have no idea. I do know that somewhere, the thing plugs in to the wall, so you won’t need batteries. I’m guessing one block has a cord attached to it, then the rest hook up magnetically or something. They are lit by LEDs, so you really won’t ever have to replace bulbs.
I was pretty curious as to how this thing looked in action, so here’s the quick little demo video of the Tetris lamp.