scratch and sniff stamps released in china to celebrate the year of the pig. when you lick the back or scratch the front you get a nice hit of sweet and sour pork. apparently the Royal Mail were the first to do this in 2001 with a eucalyptus stamp. i think we'll see more smell and sound sensory marketing stuff happening, i hope so anyway cos it's fun and the sort of thing that could be very powerful. not sure about licking pork extract though...
via ananova



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