The NES Controller Type Card Case, to be exact, a ¥2,900 ($31) anodized aluminum folder with a pair of compartments within  one for your cards, and one for those you receive.
There are two designs, neither of which do more than the other. Each looks like an NES controller, but one has a fake mic and volume switch in addition to the fake D-Pad.
via Wired.com.
