Does anyone remember this? When I was young this could keep my attention for long periods of time. The explanation from somewhere in webland goes something like this...
"For those who have never used one, the toy was made up of plastic geometric shapes with gear teeth along their edges. One of these pieces was pinned (yeah, real pins - like they’d ship those in a kids’ toy today . . .) to a piece of cardboard and another, with holes inside it at various points in its interior where the artist placed the tip of a pen, was moved along the edge of the fixed shape so that the gears meshed as it moved. This caused the moving shape to rotate with the pen leaving behind interesting mathematical curves."
I loved Spirograph! Now you can play online. Somehow it's just not the same.
