Silly Putty
Date invented: 1943
In the 1940s, the United States needed a new source of rubber after Japan had invaded Malaysia and cut off U.S. supply of the material. The War Production Board asked the nation’s industries for help. A chemist at General Electric came up with a stretchy, bouncy material made of boric acid and silicone oil.
While highly unique, the material had no military application. The material caught on, however, after GE executives began showing it off at cocktail parties and one interested party, adman Peter Hodgson, bought the manufacturing rights and changed the name to Silly Putty.
The product, packaged in small plastic eggs as a toy, began selling in 1950 and immediately caught on. In 1968, astronauts on the Apollo 8 mission used Silly Putty to help keep their instruments in place. Since 1950, the company has sold more than 350 million Silly Putty eggs.