The Dutch city of Gouda has a library / cultural centre with the delicious name, De Chocoladefabriek (or The Chocolate Factory). Illustrator and designer Joost Swarte created five chocolate coins to celebrate the five aspects of this organisation : the library, the local archive, the printing division, study room and cafetaria.
They are only available locally, and I haven’t seen them myself. But the two designs that I was able to track down, at least look delicious.
(via Joost Swarte Blog)