Check out this sweet project we found by Instructables user “hunrichs”. He’s figured out how to make a “big boy” spirograph out of a piece of pegboard, chainring and bike chain!  Check out his tutorial here. (Warning: Not approved for use with Rotor Rings.)
Click ‘more’ for the finished artwork and an old Spirograph commercial to get you in the mood…
“It’s Spirograph! Create designs so amazing your eyes won’t believe what your hands can do!”
