Chocolate Mars

Chocolate Mars is a planet visited in Never-ending story, and several times since. It looks a great deal like real Mars, but is made of chocolate. It has strange dogs that can turn into giant sharks.

Never-ending story
The original visitors to the planet were Uncle Grandpa, Shrek, Sandy, Man Ray, Mickey Mouse, and some Disney managers, all teleported there due to their new superpowers. The surface of Chocolate Mars was quickly evacuated when a rainbow-sprinkled meteor hit. KKirby and his gang hid out here for a while. On Chocolate Mars, there were small red lifeforms with solitary eyes and two tiny legs each, which was taken note of by Runnervous. One of the creatures, a more humanoid one, had his very own Patty Wagon, which he put his helmet in. It also had an abandoned Rainbow Factory.

Trivia

 * The planet is one of four non-Earths that the NES characters moved to long-term following its destruction in Chapter 1, the others being Meowala, Mars, and Ceres.