Two small DIY LEGO Technic spirographs | The Kid Should See This
LEGO Technic Creations by FOSAPIFI | Spirograph | MOC
Making Spirographs With LEGO And Math | Hackaday
So cool. Build a Spirograph drawing machine with LEGO. Fun hands on engineering project for kids | STEM | STEAM | Drawing machine, Lego challenge, Lego machines