In 1975 Mattel released theGrowing Up Skipper doll. The gimmick of the doll, which led to much controversy in the newspapers, was that when Skipper’s arm was rotated, the doll’s waist became smaller, a modest bust grew, and she became 3/4″ taller. Turning the arm back reverted the doll to her original shape.
Almost every newspaper in the U.S.A. carried a story about her, some women’s groups and a few parents wrote to complain, but with sales expected at 1 1/2 million, the doll went on the market.
Sources: Wikipedia, Doll Reference