Mattel Matson sold his share to Handler due to poor health, and Handler's wife Ruth took Matson's role. In 1947, the company had its first hit toy, a ukulele called "Uke-A-Doodle". The company incorporated the next year in California. Mattel became the first year-round sponsor of the "Mickey Mouse Club" TV series in 1955. The Barbie doll debuted in 1959, becoming the company's best-selling toy in history. In 1960, Mattel introduced Chatty Cathy, a talking doll revolutionizing the toy industry, which led to pull-string talking dolls and toys flooding the market throughout the 1960s and 1970s. The company went public in
Brent Handler a partner in his entrepreneurial pursuits. Handler knew he wanted to be an entrepreneur from the age of 23 and experienced early business success at Colorado's ExecuTrain, a computer training company. As the company's second employee, he sold millions of dollars' worth of computer training classes, and performed so well the company's owner had difficulty paying his commission. He later became a co-owner of the company. After his initial success at ExecuTrain, and the sale of the company, Handler went on to launch two businesses before finding success in the destination club industry. In 2002, along with his brother Brad