If you've ever nerded out at the movies over an animal in an animated series, science fiction, or book-to-movie film, you have wanted one of these animals.
Porgs, 'Star Wars'
Compilation of Star Wars Porgs from the Last Jedi
Porgs are the bird-like animals with the giant eyes that inhabit the island Luke Skywalker went to hide from the world on in The Last Jedi. The animals were actually birds that were on location, and they could not be removed from the visual effects team. They decided then to make those birds into an animal called the Porg. You can see some of their concept art here on Kotaku.