I modeled and printed this part to replace the broken clip for my wife's sewing machine.

Note that the shaft is a replaced one as it was broken, the clip holder is design to fit a 6mm shaft, you can scale the model according to your needs.
 

Printed on prusa XL:

• 0.1mm layer height
• PLA Glaxy black Prusament filament
• Auto support activated
• Printed with the conical part on the bottom to have good print for the retaining studs.