A simple cord clip. The ones I had didn't allow for a screw to go through easily, so I made one with a larger hole diameter. I find that using a screw makes for a more pleasant experience. Nails can come loose more easily when too much force is applied. Screws don't have that problem. Nails can still be used.

• 3mm screw or nail diameter
• up to 6mm cable (might be able to squeeze in a bit more)
• 6mm countersink

Prints quickly. Can also be printed in sport mode (I had no problems doing this with the parameters in the print file).

Best printed on it's side, also doesn't require support if printed as such (predefined in the print file).