I couldn't really find any other models out there with this keyhole design to make the wall mount easily removable, so I made it myself. Should be able to hold most swords on in that I've tested. 

Try to print in the original orientation for the most strength, rotating it can cause the arms to be a little weaker. If you are planning on putting a heavier sword on, try scaling the model a bit for increased strength if needed.

Dimensions: 

The keyholes can fit most screws with heads smaller than 10mm.

Arms are 40mm long and 20mm wide.

Enjoy!