Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5445001.
Had a beige filament and wanted to print something matching with it.
Created procedurally in Geonodes with Blender 3.2.
Woven Bangle Model. I designed it for small arm diameters. You might have to scale it up for your arm. The model is fast to print and doesn't need much material, therefore it should be no problem to print it again if it doesn't fit on the first try.
Supports aren't needed for this model. Even though most parts bridge in midair, on this scale there won't be any issues. I've printed mine on an stock Ender 3 without difficulties. Depending on your layer height the first layer might have to small details for your printer. If you have adhesion issues the simplest way is to lower the model by half a layer height to have more contact area.
Also available on Printables: https://www.printables.com/de/model/239309-woven-bangle-armreif
I was inspired to this model by the work of James: (https://www.printables.com/de/social/154938-james/collections/193934).