This project was made in order to help young children gain a basic understanding of the effect of moments on objects. The further the distance from the center of the object, the greater the magnitude of the moment. Moment = Force * Distance. This design was inspired by a similar product available on amazon: https://www.amazon.com/Tagke-Children-Intellectual-Education-Experimental/dp/B07RGFP9YP
The amazon product retails for $39.23, but the design I printed required 4.1 m of filament, which is roughly equivalent to $0.25 in 1.75 mm PLA.