Watch this clever Japanese rice ball hack

Japanese onigiri sold at Family Mart convenience outlet (konbini) in Osaka, Japan (ahmad.faizal / Shutterstock.com)

Japan's beloved convenience store onigiri (rice balls) just got even better, thanks to a clever hack shared by Zen-Noh, the Japan Agricultural Cooperatives Group. While these triangular treats are already celebrated for being tasty, afforda…