The new fashion accessories created by Japanese designers Motoi Ishibashi and Daito Manabe, and are now being used in a commercial advertising a winter sale at a Japanese clothing store, Laforet Harajuku. Motoi Ishibashi said the pair was inspired by "LED throwies," or bundles of LED lights attached to a magnet. The LED smiles can easily be affixed to your teeth and glow different colors while you smile. The colors can be changed wirelessly through a computer interface. Of course they work best in the dark. Check out the video, titled “party in your mouth,” shows a curated group of Japanese schoolgirls wandering the street wearing the glowing lights.