Khatt Items Earrings are best produced in 3D print.
Casting in metal will be costly, but the relatively small mass of earrings will make it affordable. For smaller budgets there are a number of different plastics available for 3D print in a limited array of colours.
The component of the earring that will actually put in, or clipped on the ears are best bought with jewelry component sellers. The 3D printed part must be attached to this component later.
For the Khatt Items Earrings there are also a few ‘design templates’ available that can be customised in a number of aspects: rod thickness, height and detail.