"Produced by the Susami fishing cooperative, Surumail postcards consist of dried surume squid (Todarodes pacificus), the local seafood specialty. The squid jerky is flattened and vacuum-packed into the shape of a postcard, and an adhesive label is included for the postage, delivery address and a short message." This should work well with the pork-flavored stamps. The same people earlier installed a mailbox on the ocean floor.
Earlier:
Flavored Magazine Inserts
