Wasn't satisfied with the ones I tried so I made this simple one.
Only includes one STL. It can be used for either wrist but it isn't symmetrical, so one side might feel better to you (it's tilted forward by ~5 degrees). If you don't like it, or want two, use your slicer to mirror it.
Print settings:
TPU filament
2 perimeters
4 top/bottom
2% gyroid infill
For best results, don't rotate. Print standing up, so that the part that touches you is the smooth perimeters and not a rougher top surface!
Comes out nice and firm yet squishy, very satisfying. Like a cooked steak lmao.
The author hasn't provided the model origin yet.