Bette Midler inspired her own costume.
In a 2019 interview with Glamour, the film’s costume designer, Mary Vogt, said each witch’s outfit was tailored to resemble the character’s personality.
Sarah’s dress was inspired by “Sleeping Beauty,” and Mary’s resembles a baker’s uniform.
But Bette Midler herself inspired Winnie’s look.
Vogt recalled, “When I talked [to Ortega] about my vision for Bette, I said, ‘You can’t put her in some black witch outfit. You have to put her in something that’s colorful and fun and has a little sparkle to it.'”
“So when I did sketches and talked to Kenny about it, he responded, ‘Now let me talk to Bette, because this might not be what she was thinking of,'” she continued. “So he talked to Bette, who said, ‘Well, of course. I’m not going to wear some black dress.'”