Chattery Teeth are a children's wind-up toy

Wind-up toy

A wind-up toy is a toy powered by a clockwork motor.-History:Wind-up toys date far back into history, into the 15th century. Karel Grod, a German inventor, created some of the first wind-up toys, including a metal fly and a mechanical eagle. Also, in 1509, Leonardo da Vinci created a wind-up lion...

 designed by Eddy Goldfarb for design company Marvin Glass and Associates

Marvin Glass and Associates

Marvin Glass and Associates was a toy design and engineering firm based out of Chicago, Illinois. While not a household name, Marvin Glass and his employees created some of the most successful toys and games of the 20th century. Marvin Glass and Associates is the source of many of the most...

. Originally called "Yakkity Yak Talking Teeth" upon release in 1949 by novelty company H. Fishlove & Co., a pair of mechanized

Mechanized

Mechanized refers to the use of machines. Related articles:*Mechanised agriculture*Mechanization* For "Mechanized artillery", see Self-propelled artillery* For "Mechanized force" and "Mechanized warfare", see Armoured warfare*Mechanized infantry...

 teeth are wound up at the back, and the teeth clatter together. Reproductions are today sold at novelty stores. While most chattery teeth come equipped with walking feet, many models do not.

Goldfarb's original design, which he claimed was inspired by his mother-in-law, was awarded from the U.S. Patent Office

United States Patent and Trademark Office

The United States Patent and Trademark Office is an agency in the United States Department of Commerce that issues patents to inventors and businesses for their inventions, and trademark registration for product and intellectual property identification.The USPTO is based in Alexandria, Virginia,...

. H. Fishlove, now a division of magic trick and novelty manufacturer Fun Inc., still produces chattery teeth based on Goldfarb's specifications.