Sindy boyfriend Paul was released in 1965, and her younger sister Patch in 1966. Sindy's friends Vicki and Mitzi, and Patch's friends Poppet and Betsy debuted in 1968. Sindy was the best selling toy in Britain in 1968 and 1970. Sindy's success in the 1960s was partly due to the increasing range of accessories, with up to 70% of Sindy's turnover from sales of accessories. Mattel did not greatly expand Barbie's accessories until the 1980s, and this was a significant difference between the dolls. During the 1970s, Pedigree focused on developing more Sindy products and neglected advertising and market research, risking
Mitzi Hajos She was often described as "tiny" and "diminutive", and often played children or characters pretending to be children. A reviewer in the "New York Times" approved, saying "she makes such an adorable boy, too." Because her surname was difficult for American audiences, she went by the single name "Mitzi" in programs and publicity materials, at the peak of her career. Broadway shows she appeared in included "La Belle Paree" (1911), "Her Little Highness" (1913), "Sari" (1914, 1930), "Pom-pom" (1916), "Head over Heels" (1918), "Lady Billy" (1920-1921), "The Magic Ring" (1923), "Naughty Riquette" (1926), "The Madcap" (1928), "You Can't Take It