It's not a spirograph curve unless the cog teeth have slipped and your pen has scrawled across the page taking up a bit of paper with it and you have to start again.
Agreed. As much as I like coding and generative art too, there's nothing like the effort of keeping the smaller gear inside the larger one and going fast. Much harder on the outside! I just picked up a $8 Spirograph in tin case for my three year old.