"Play-Doh" was first invented by Noah McVicker. He was trying to make a wallpaper cleaner that could remove coal residue from walls easily. His nephew Joe discovered that the product was being used by a school to craft Christmas ornaments. By 1956, Joe had named the toy "Play-Doh" and it was being sold in places like Macy's. By 1958, the company had made $3 million.
As time went on, the company continued to expand. Popular children's icons like Captain Kangaroo endorsed the product. In 1960, Play-Doh began placing a mascot, Play-Doh Pete, on their packages. The company also expanded to Britain and France. By 1980, Play-Doh had expanded its palette to 8 colors. Play-Doh also started using plastic cans instead of cardboard containers. More recently, Play-Doh has released versions that glitter, glow in the dark, or even have certain scents. As of 2014, more than 700 million pounds of Play-Doh have been sold and played with. Play-Doh was inducted into the National Toy Hall of Fame in 1998.
Play-Doh has contained the same ingredients since it was discovered. Play-Doh is primarily a mixture of water, salt, sugar and flour. A petroleum additive gives it a smooth feeling that makes it easy for children to mold.