The non-toxic, non-staining, reusable modeling compound that came to be known as “Play-Doh” was a pliable, putty-like substance concocted by Noah McVicker of Cincinnati-based soap manufacturer Kutol Products. It was devised at the request of Kroger Grocery, which wanted a product that could clean coal residue from wallpaper. Following World War II, with the transition from coal-based home heating to natural gas and the resulting decrease in internal soot, and the introduction of washable vinyl-based wallpaper, the market for wallpaper cleaning putty decreased substantially. McVicker’s nephew, Joe McVicker, joined Kutol with the remit to save the company from bankruptcy. Joe McVicker was the brother-in-law of nursery school teacher Kay Zufall, and Zufall had seen a newspaper article about making art projects with the wallpaper cleaning putty. Her students enjoyed it, and she persuaded Bill Rhodenbaugh (who also sold the putty) and Joe McVicker to manufacture it as a child’s toy. Zufall and her husband came up with the name Play-Doh; Joe McVicker and Rhodenbaugh had wanted to call it “Rainbow Modeling Compound”. Joe McVicker took Play-Doh to an educational convention for manufacturers of school supplies, and Woodward & Lothrop, a department store in Washington, DC began selling the compound. In 1956, the McVickers formed the Rainbow Crafts Company to make and sell Play-Doh. Also in 1956, a three-pack of 7-ounce cans was added to the product line, and, after in-store demonstrations, Macy’s of New York and Marshall Field’s of Chicago opened retail accounts. In 1957, chemist Dr. Tien Liu reduced Play Doh’s salt content (thus allowing models to dry without losing their color), and Play-Doh ads were telecast on Captain Kangaroo, Ding Dong School, and Romper Room. In 1958, Play-Doh’s sales reached nearly $3 million.