Besides the ubiquitous yellow rubber duck with which most people are familiar, there have been numerous novelty variations on the basic theme, including character ducks representing professions, politicians, or celebrities. There are also ducks that glow in the dark, quack, change color, have interior LED illumination, or include a wind-up engine that enables them to "swim". In 2001, The Sun, a British tabloid reported that Queen Elizabeth II has a rubber duck in her bathroom that wears an inflatable crown. The duck was spotted by a workman who was repainting her bathroom. The story prompted sales of rubber ducks in the United Kingdom to increase by 80% for a short period.
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