Rubber duckies are small, floating toys made of rubber or plastic, often designed to resemble a duck. They are commonly used as bath toys for children, providing entertainment during bath time. These toys typically come in bright yellow, but they can also be found in various colors and styles. The classic rubber ducky was invented in the late 19th century and has since become a popular symbol of childhood and play. They are often associated with the Sesame Street character Ernie, who famously sings a song about his beloved rubber ducky.