Pick up great souvenirs from this plastic food model manufacturer. Among the examples of freakishly realistic food models are some more tongue-in-cheek ones, plus souvenir key chains, fridge magnets and kits to make your own (with English instructions).
It has another shop on the 4th floor of Solamachi.
Model-making classes are also held, but if you don't speak Japanese you'll need to arrange to come with an interpreter and in a group of eight people.