Oloid_Skeleton

In mathematics, an oloid is “the convex hull of two orthogonal circles, each passing through the center of the other”.

I suggest printing only the two circles and their flat connecting surfaces.

This saves material (filament) while retaining some of the object's properties, notably its remarkable ability to roll with very little ground contact, and thus friction.

I created cutouts in the surfaces for the object's aesthetics, but also to save on the amount of filament needed.

After printing, simply glue the two parts together, and after drying, push it gently on a flat surface to see that it rolls easily and smoothly for a long time.