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
Daniel Handler have leeches in a film. Daniel Handler wrote the lyrics to the song "Radio," performed by One Ring Zero, and the lyrics to "The Gibbons Girl" by Chris Ewen's The Hidden Variable. In 2017, Handler wrote the play "Imaginary Comforts", "or The Story of The Ghost of The Dead Rabbit", which was performed at the Berkeley Repertory Theatre. The satirical play follows the intertwining lives of three characters and is inspired by the grief Handler felt after the death of his father. Handler has also had some success in film work. He produced the screenplay for "Rick", which was based