Read more about how they are customized. Kerin Rose Gold is the artist behind the sparkling Labubu dolls that Naomi Osaka carried with her each match of the U.S. Open so far, unveiling each of them in a post-match flourish. Each doll is embellished by hand and named to wink at a tennis colossus: Billie Jean Bling. Arthur Flashe. Althea Glitterson. Andre Swagassi. Each custom Labubu requires 8 to 12 hours of work. #Labubu #Labubus #NaomiOsaka #USOpen