A simple cheap 3d print and two nails. I know I'm charging more than the cost of the print. These come fully assembled. You're gaining the benefit of having a unit that works out of the box. Has the nails pressed in with my arbor press. No need to fuss with the printing process at all. Each version can technically work with any type of PCB but won't 'seat' as far due to potential interference with components on the component side of the PCB. Info and files are available here: https://github.com/SkreeCustomKeyboards/Twist-SKPCB-Tools