Visually See The Effects Of Smoking

That's the idea behind Fiona Carswell's Smoking Jacket. The smoker exhales smoke into a special area in the collar. The smoke then gets channeled thru a series of tubes into plastic lungs on the front of the jacket. Over time, the lungs will turn yellow and stain. If you don't smoke, the stain and smoke will eventually dissipate.
The whole design uses visceral communication to remind smokers what they're doing to their bodies, an alternative to using patches, pills and chewing gum.