Climbing Nut Key Holder

I have designed this key holder that recreates some rock cracks so the keys are held usind a climbing nut keychain.

If you want you can use a real nut, but I added a 3D printable one.

I have mounted the one on the image using double sided tape, there is a verison with holes so you can use screws.

The nuts I have designed uses 2mm cordino.

Hope you enjoy the design :)