I modeled this in cad (OnShape) to challenge myself. I took inspiration from a simple mobius strip design, which really only has one “side.”
If you want to print it in two colors, the base is 10mm high. Change filament at 10.2 (or whatever corresponding layer height you use).
Needs a few tree supports. Try fuzzy skin with a silk pla.
The author marked this model as their own original creation.