A Gummi is a Gummi’s Best Friend Adventures of the Gummi Bears : Season 5 Episode 10

Gusto creates a lifelike stone statue of Zummi, then persuades Zummi to come to his workshop so he can create a better one. Meanwhile, Gruffi mistakes the statue for his friend, believing that Zummi has turned himself into stone - and so does Lady Bane.