This little, minimalistic cube helps you mount strings to your wall without the need for big hooks or screw holes in your wall.

Simply thread the string through the hole in the base and tie a knot to securely fix it in the cube. 
Then use the top to close it. 
Add a small strip of double sided tape to the back and you are good to go.

If you want to use a long string you can use the “Dual Hole” Stl along it to hold it up.

Dimensions:
Cube: 1x1x1 cm
Hole size: 2.6mm

You need a different cube?
No problem. I added the original blend file that can easily be adapted to your needs.

Note: For parametric changes to the model, you need to have the free “CADSketcher” Plugin installed in blender.