I came up with a plainted box from Hema:
The advantage of this is that it is made from cloth and you can move the individual bands for the cables to fit through. So not cutting and drilling required.
Additionally, I have used a set of wire/cable clips to have the cables organised a little inside the box.
This is where I started off:
Step 1: You Need:
- A piece of cloth to cover the box if the box has no lid
- Some cable clips or similar