Swiss art school Ecole cantonale d'art de Lausanne (ECAL) just created a nifty little device called Bouquet that lets users smell colors while looking at visual art.
Bouquet is a synesthetic olfactory device which permits the user to perceive color through fragrances. The device detects the color it presented and delivers a corresponding mix of fragrances through the nozzle. Bouquet acts as an extension of the user's olfactory senses in order to deliver a different sort of augmented reality.
Looks almost as cool as Smell-O-Vision!