Developed by Denys Fisher in England in 1965, Spirograph is a creative design toy that uses gears, wheels and a pen to create 2D geometric patterns. The first sets were sold in the US by Kenner and soon became popular. Many different types of Spirograph sets have been sold around the world and continue to be sold today.
See also TVTA’s Cassette-O-Graph
Sam’s Toy Box has some great Spirograph sets.