The 'Red and Blue Mandarin Duck Design' refers to a decorative pattern or artistic representation featuring the iconic red and blue mandarin ducks. Mandarin ducks are known for their vibrant red and orange plumage and are a popular subject in Chinese art and design. These designs are often used in traditional Chinese crafts, such as embroidery, ceramics, and porcelain, where the ducks are depicted in various contexts, from simple silhouettes to detailed scenes.