Aromatherapy is very popular here in Tokyo since a long time ago. Many profesionals dedicate their lives only to aromatherapy. Walking around Harajuku we found this shop called @aroma where you con touch sensors on the street and a fan expels the selected aroma letting the user sense it.
Inside the shop there is a system with buttons that allows you to combine different essences in order to create your own original aroma. Once you have selected the ingredients that you like you can buy your originally designed aroma bottle for 2000 yen.
Location on Google Maps.