Wallykazam! (2014)

S2E7 Dawn of the Zucchini

Wally and Norville encounter a gnome named Zack in the vegetable patch, who is unhappy with his name starting with the letter Z. However, everything changes when Wally introduces him to the Magic Stick, revealing the wonders of words that begin with Z. Through this newfound appreciation, Zack discovers just how special the letter Z can truly be.