After having to open my electric guitar twice in one day to check wiring, I decided to make this to avoid strings tangling in each other again.

Two parts connect with 3mm high, 3mm diameter round magnets. You can edit the model if you need diffrent amount of strings or diffrent magnet size.

OpenSCAD source included if you need to custmize anything.

Add just a tiny bit of hot glue on the magnet, then push it in place. Literally a tiny bit is enough, if the glue is oozing out of your hot gun glue, just touch magnet to it then quickly insert it into the hole while holding the model. The magnet will attract the ones that you inserted previously and it will move the entire thing if you don't hold it down.