aaron heslehurst explains. hey! yeah, it's the rubber duck. quack—quack. the first one to float was designed in 1947 by this bloke right here, russian—american sculptor, peter ganine. the ones before his had been solid and guess what? they sank. but peter's ducks were so popular, he sold over 50 million of them. sales of these really soared in the 1970s, when the us kids' show sesame street came up with the song rubber ducky. and here in britain in 2001, sales of these soared 80%. why? well, it was revealed the queen... she had a rubber duck with a crown on its head. then there was the episode when 29,000 little duckies fell off a cargo ship in the pacific ocean. scientists later found them washed up as far away as south america and england. and that gave them the best idea yet of how the ocean currents work. so here's a question, which is the world's biggest rubber duck? well, it's this one right here, made by the dutch artist florentijn hofman. oh, it's big, all right, yeah. it weighs 600 kilograms. oh, and it's been on tour all around the world. now tha