I liked @eirikso's wall mount but needed to fit it to my pegboard.
Important!!! Print this in the orientation that stl-file has, so layers won't separate while using the holder. I used 15% infill and that seems to be good amount for this. With that infill, this print takes 28m of filament and 5h28min print time with 60mm/s speed.

Biltema pegboard holes are 4mm wide and 12mm abart from each other and it is sold in Scandinavia, but there are other brands around the world with same diameters.