The picture is pretty self-explanatory. But just in case, you’re looking at a lamp made up of Tetris blocks. You hook one of the blocks to an outlet and it lights up. You’re then free to stack the others as you please, and they’ll light up as soon as they touch the first one. You can place them in any order and orientation you want, and you can order as many blocks as you please, or at the very least, as you can safely stack. At least, that’s what we’re understanding here. And it appears that one block is £29 or roughly $45, so a really fancy configuration can get pretty expensive quickly.