Demon Slayer: Kimetsu no Yaiba sibling stars Tanjiro Kamado and Nezuko Kamado have been through a lot over the years, so they’ve earned some chill time in the form of rubber ducks. Collectible brand TUBBZ made the transformation a reality thanks to its latest collab, which has the Tanjiro and Nezuko ducks available separately in Collector’s, Boxed and Mini Editions.  Priced at $24.99 each, the Collector’s Edition includes a branded tub, base print and special sticker. The Boxed Editions are $20.99 and include stackable window display packaging, and the Mini Editions shrink the duo down from 3.54 inches to 2 inches for $9.99 a pop. You can see the Demon Slayer: Kimetsu no Yaiba rubber ducks and all the other collabs over at the official TUBBZ website , where they’re currently available to order.  Tanjiro TUBBZ Nezuko TUBBZ The latest installment in the Demon Slayer: Kimetsu no Yaiba anime adaptation was Demon Slayer: Kimetsu no Yaiba Infinity Castle I , which opened in Japan on July 18, 2025, and in the United States and Canada on September 12. It makes its debut on Crunchyroll starting on July 28, 2026. Haruo Sotozaki directs the Demon Slayer: Kimetsu no Yaiba series at anime studio ufotable. Akira Matsushima serves as chief animation director and character designer, and the music is composed by Yuki Kajiura and Go Shiina.