The Slinky

I picked up the DVD for the musical "Hairspray," and I thought I heard an anachronism. Wilbur Turnblad (Christopher Walken) tries to win his way back into the good graces of Edna Turnblad (John Travolta) by saying "Doll! You're as spry as a Slinky!" Trouble is, I remember seeing Slinkies for the first time in 1966, well after 1962, the year "Hairspray" is set in.

Alas, nothing for imdb. Turns out, the Slinky first met the public eye in 1945:

In 1943, Richard James was a naval engineer trying to develop a meter designed to monitor horsepower on naval battleships. Richard was working with tension springs when one of the springs fell to the ground. He saw how the spring kept moving after it hit the ground and an idea for a toy was born.

Richard James told his wife Betty, "I think I can make a toy out of this" and then spent the next two years figuring out the best steel gauge and coil to use for the toy.

Betty James found a name for the new toy after discovering in the dictionary that the word "Slinky" is a Swedish word meaning traespiral - sleek or sinuous.
Slinky debuted at Gimbel's Department Store in Philadelphia, Pennsylvania during the 1945 Christmas season and then at the 1946 American Toy Fair. Richard nervous at the first demonstration of his toy convinced a friend to attend and buy the first Slinky. However, this turned out to be unnecessary as 400 were sold during the 90 minute Gimbel demonstration.

Richard James and Betty James founded James Spring & Wire Company (renamed James Industries) with $500 dollars and began production. Today, all Slinkys are made in Hollidaysburg, Pennsylvania using the original equipment designed and engineered by Richard James. Each one is made from 80 feet of wire and over a quarter billion Slinkys have been sold worldwide.

Around 1960, Richard James suffered from a mid-life crisis and left his wife, six children, and the Slinky Empire to join a Bolivian religious order/cult. Betty James took over as CEO of James Industries and rescued the company from the debts left by her husband's generosity to his religion. She moved the company to its current Hollidaysburg location from Philadelphia and began an active advertising campaign complete with the famous Slinky jingle. Richard James died in 1974.