The accessories are being used to promote a winter sale at a Japanese clothing store, Laforet Harajuku. The designers said they had received numerous requests from people around the globe who desired to buy them. But they are not commercially available, & the designers said they had no designs to make them so at this time.
In the commercial campaign, the LED smiles are affixed to the teeth of models, & glow different colors while they smirk. The colors can be changed wirelessly through a computer interface. Of coursework they work best in the dark.