I designed this to relieve my wrists from the torque in the default posture, because I am prone to tendinitis. It slides onto the sides of the standard handles.
Recommended settings:
Prints in about 8 hours on my Prusa Mini. You need to print two of them (obviously), the second one does not need to be mirrored. I also recommend wrapping the finished handles with grip tape.
Model on OnShape: https://cad.onshape.com/documents/a5577c8628004ee024cc4fda/v/de6453f672592c5ba0478240/e/d59b12b5a149710873c1d398?renderMode=0&uiState=64465e55ded7aa3ef05368d6
The author marked this model as their own original creation.