Thanko has some strange gear and gadgets that it sells and most of them connect to the USB port. The company has a new and very odd accessory for the masks that folks tend to wear on their face in Japan. The mask is white and looks like a cat's snout with whiskers and all.
The mask has a fan on the inside that runs when plugged into the USB port on your computer. I guess the idea is to help you breathe a bit better when wearing one of those masks. The cat nose is held on your face by a pair of loops that go around your ears.
It has along USB power cord and no internal battery that I can find. That means it will only work while you are sitting by your computer. Japanese folks that must have one of these things can get one now for 1980 yen from Thanko.