B. Little Yellow Duck is a bathtub toy designed by Hong Kong designer Xu for his son in 2005. It was named B.Duck with the theme of bathroom and personified cartoon image. After that, B.Duck Little Yellow Duck gradually developed into a world-famous brand image, which was widely used in various products, such as toys, household goods, clothing, electronic products and so on. The image of B.Duck is deeply loved by consumers, especially among children and teenagers.