Duoduo Baby, Duoduo Princess, Duoduo Fairy, Duoduo Sweetheart, Duoduo Baby Pig, Duoduo Little Princess, Duoduo Fairy Pig, Duoduo Sweetheart, Duoduo Baby Bunny, Duoduo Little Princess Bunny. These nicknames have a cute and playful feeling and are suitable for users who like this style.