These mouth covers will show text whenever the air is dirty. They, so to say, 'smell' polluted air.

There's no need for cups with different prints on them to tell you which coffee you have got with these cups. These cups can 'smell' which coffee you have and based on that, it will display the colour that belongs to the taste of coffee that is in the cup.

This is no ordinary gas station. At this gas station, you can choose the smell that your car will exhaust. Everyone will know it was you with your lovely smelling car that passed by in your street.