John Waters picks up the baton from William Castle's 'Scent of Mystery' 'Smell-O-Vision' (1960) and comes up with 'Odorama', the card here, distributed to the audience, numbered 1-10 on the reverse, as the number appeared on the screen, viewers scratched and smelt the designated number to add to their experience of the movie specifically Francine Fishpaw's acute sense of smell, a not insignificant plot point.
