Depending on how much money you have, get a bunch of cheap, say strawberry, sweets (candies).
Split into thirds and have one set with no label, one called strawberry candy, one with an 'OTT' name (strawberry ultra, burst, xtreme or whatever). Get different groups to rate the flavours of the sweets. (i.e. does an 'ultra' name mean people will think the same things taste better?)
EDIT: Semi-ninjad with Pepsi/coke
Split into thirds and have one set with no label, one called strawberry candy, one with an 'OTT' name (strawberry ultra, burst, xtreme or whatever). Get different groups to rate the flavours of the sweets. (i.e. does an 'ultra' name mean people will think the same things taste better?)
EDIT: Semi-ninjad with Pepsi/coke