Penguin Costumes For Kids, Adults and Babies Waddle into your next Halloween or costume party dressed as the coolest critter around. We have penguin costumes for kids, adults and even babies! The Penguin is a DC Comics supervillain. He appears in Batman: Batwheels and is a boss in the Arkham Asylum level of Injustice: Gods Among Us. Adult Plush Penguin Costume Waddle into the party in this funny and adorable Plush Penguin Costume. The adult tunic style costume is made from quality stuffed foam that's laminated onto a comfortable black poly fleece onesie. The hood features large blue eyes and a yellow beak that add to the adorable design. The wings have openings for your arms along the wrist, and padded yellow feet shoe covers are included to complete the look. This plush penguin costume will be a hit at Halloween parties, holiday events, and any other fun occasion. It's also a great option for team and group costumes, as well as for use as an animal theme mascot costume.