The Great Moshling Egg is a very old Moshling egg, previously inhabiting Mrs. Snoodle before hatching. It was first introduced in Moshi Monsters: The Movie by Buster Bumblechops when it was displayed in Buster's Museum of Moshiness.
- According to Buster Bumblechops, the egg has been around since The Great Custard Flood of 99999.5.
- The Great Moshling Egg is the Legends Moshling house, this makes sense as to why Mrs. Snoodle is in this set.
- In The All-New Moshlings Collector's Guide, Buster Bumblechops states that he has doubts to the Great Moshling Egg being "great" at all. This implies that Mrs. Snoodle may not be the legendary Moshling; and the actual legendary Moshling may still be hidden in a different egg, although there is no reference to this in Moshi Monsters: The Movie.