Designed this tool holder for my most used tools (the flush cutter and tweezers). This one is designed to just slip into the holes on the sides of the Sketion cabinet by Ikea. I have included the fusion 360 and step file in case you want to modify the pegs for a different layout.

For reference the holes are 32mm apart and about 5mm in diameter.

Sadly this does require support for the pegs (as shown in the picture). I included a flat side on the bottom of the peg to facilitate this. Tree or regular supports should work fine.