Grandpa Grundy loved jellybeans. Every time he plopped one in his mouth, he patted his wiggly, jiggly tummy and said, âYum! Yum, yum, yummy!â One night, only one jellybean was left in the jellybean jar.âWell, pop my buttons,â said Grandpa Grundy. âOne jellybean! I canât eat that.â Then Grandpa Grundy got a fantastic idea . . .