Invisible Cow/Monster in the Closet

Chicken tells Cow that she's not artistic, so she in return, sculpts a seal out of a stick of chewing gum, and an entire machine full of bubblegum balls. Cow wishes that her chewing gum seal, whom she names Chachi, was real. Suddenly, a wishing star grants her wish, and Chachi is a real, miserable, ho-hum seal.