[Tuchman] starts with a quick proof-of-concept using an actual plastic Spirograph toy to make sure it isn’t a totally unworkable idea. Unsurprisingly, the plastic is too flexible to give a ...

Artists use spirographs to add visual texture to paintings, using the geometric shapes as a base for more complex compositions. At its core, Spirograph art is rooted in mathematical principles.

Spirograph is hard to describe ... This was also intended as a way for young artists to switch pen colors and gears easily. However, as consumer safety standards in the US toy industry advanced ...