From Sunstar Stationery’s “Stecho☆” total stationery series, “MarshmallowPop” water-activated mini stickers featuring new Sanrio character designs are now on sale. The set includes all six designs—Hello Kitty, My Melody, Hangyodon, Pompompurin, Cinnamoroll, and Kuromi—and each is priced at 550 yen (tax included). Orders are now being accepted on “Anime Store.JP,” the online store for the collaboration café.