quot;Wild Gears" offer an alternative to Spirograph with many interesting possibilities. An in-depth review of the differences between the two sets.
Spirograph vs Wild Gears Comparison - SpiroGraphicArt
Wild Gears vs Spirograph
Wild Gears
Wild Gears: Wheel Within a Wheel
Blog
Wild Gears vs Spirograph
Wild Gears : r/spirograph
Wild Gears- Anybody use the 112 gear yet?? : r/spirograph