If you’ve ever wanted a taste of the deep sea, try the Ōgusokumushi Senbei (¥1,620), containing the deep-sea creature Ōgusokumushi, a giant isopod related to shrimp and crabs. The rice crackers contain the critters caught off of Suruga Bay, and, if anything, are sure to leave an impact if brought as a souvenir!

Available in two locations in Tokyo: Oishizu (8-2 Neribeichō, Kanda, Chiyoda-ku) and The Akiba (1-15-16 Sotokanda, Chiyoda-ku).