You can get all manner of weird and wonderful iPhone cases, but if you want something more industrial, maybe you'd like one made out of concrete. Wait, what?
Designed by Korean creative collective Posh Craft, this replacement iPhone 5 back is made entirely out of concrete. The designers claim each one is unique, skittered with one-of-a-kind crater-like voids and imperfections.
A bit like it was taken from the surface of the Moon. Or, if you were cynical, a bit like it was just made out of crappy concrete. It goes on sale soon — but who the hell is going to buy one? Discuss. [Posh Projects via Design Boom]