In all tourist areas of Japan there are many shops for buying souvenirs, especially in Japan often sell different types of traditional foods that offer different varieties depending on the location. These foods are usually sold in a nice packaging box.
Such food is usually Dango, Senbei or Manju for example. The interesting thing is that you can try to test them before buying, so we know if we like the flavor, because the appearance can be deceiving sometimes.
While it’s not recommended, you can easily fill up your stomach by trying all the food samples until you’re fully filled!