On a field trip to mars Elroy picks up a remarkable looking stone and takes it home. It turns out to be the egg of a rare pet. The Jetsons decide to keep the pet and call it Orbitty. Orbitty turns all kinds of colors to show his emotions. He can fix machines unlike a gremlin who usually sabotages them. He also has spring-like legs, enabling him to bounce, and has plunger-like legs that makes him stick to many surfaces. He often uses them to hang from the ceiling.