In the Steven Universe Movie, Spinel's original appearance was inspired by Mickey Mouse's design. After she was abandoned for 6,000 years, her design changed to more closely resemble Oswald the Lucky Rabbit,
Steven Universe Creator Rebecca Sugar Explains How Spinel Was Designed
Rumor: Will Spinel join MultiVersus soon?
Spinel | Character Profile Wikia | Fandom
Spinel | The Adventures of Combo Wiki | Fandom
ArtStation - Spinel (Steven Universe: The Movie) fanart
Spinel | Steven Universe Wiki | Fandom
Steven Universe - Pack 7: Spinel Edition for XPS by ASideOfChidori on DeviantArt