It seems like Wonder Woman's natural leadership and flair for the dramatic makes her the perfect hero to reinvent as a pirate, having appeared as one in at least two stories. A multiversal doppelganger of The Princess of Themyscira has recently shown up in the pages of Justice League Incarnate, reimagining Wonder Woman as Captain Wonder, leader of a crew of pirate Amazons. But Captain Wonder's costume doesn't embrace the life of a buccaneer as much as a previous sea-faring Diana did.
The new Justice League Incarnate is a series about a League composed of DC heroes from across the multiverse. The book builds on realms and characters established in Grant Morrison's Multiversity, while adding its own unique story. One such world to get a deeper look is Earth-31, a drowned world that has given a rise to nautically-themed heroes such as Captain Leatherwing, Robin Redblade, and the previously mentioned Captain Wonder.
In Justice League Incarnate #3 by Joshua Williamson, Dennis Culver, Ariel Olivetti, Nik Virella, Todd Nauck, Mikel Janin, Andrei Bressan, Hi-Fi, and Tom Napolitano, the team is scattered across the multiverse, with some in peril. The Flash of China, Avery Ho, is being interrogated by a skeletal Blackbeard as she walks the plank. Before she's forced to meet her maker, an invisible airship appears with a team of Amazon pirates swinging in on golden lassos. They are lead by Captain Wonder, a Wonder Woman with a few alterations to her traditional costume, such as a bandana and necklace to give her a more nautical flair. While the Wonder Woman of Earth-31 effectively communicates her life as a seadog, another Diana had a much more convincing pirate outfit.
Seen in the story "Last Voyage of the Pirate Princess" of Justice League of America 80-Page Giant #1, Wonder Woman's design had a few more alterations to her traditional costume than Captain Wonder's. While she keeps several parts of her uniform such as her bracelets and her iconic symbol, a white, billowy shirt has been added to her wardrobe. She's also adorned with much more jewelry, embracing the garish nature of treasure hunters. This Diana also wears pants with a holster, keeping her warrior spirit alive and well. While Captain Wonder's design does a great job at giving Diana the changes she needs to fit into a waterlogged world, this other version Wonder Woman really sells the idea that she lives the life of a scurvy corsair.
Captain Wonder is clearly a hero and it seems her design was made so that readers could identify her as one. But for a one-off imaginary story, the other pirate Wonder Woman goes further in the aesthetic and allows her to fully live the pirate's life.