Show off your playful side with this eye-catching black t-shirt featuring a quirky yellow rubber duck design! The shirt playfully asks 'What is functions of a rubber duck?' adding a touch of humor to your wardrobe. Made from soft, comfortable material, this tee is perfect for casual wear, relaxed weekends, or as a conversation starter. The design is printed with high-quality ink to ensure vibrant colors and lasting durability. This unique t-shirt is a must-have for those who love rubber ducks or enjoy wearing fun, quirky apparel. Add this statement piece to your collection today!