Big Mouth+Small Face=Beautiful!
Despite it's misleading name, this gadget is supposed to make your mouth bigger, not smaller. BIGGER? Yes, bigger. Who on earth would want this? Well, the theory is that if you widen your mouth, you will have the appearance of a small face, so prized by the Japanese.
Apparently, this device comes in regular, small, and large sizes so no matter what size your face is, you can have the mouth of your dreams! Now, that is weird!