There are lots of correct ways of creating small drawers for organising all your junk :) If you know your way around woodworking tools and have a table saw you can combine 3D printed corners with regular woodwork. These corners have a small radius on the outside, giving your drawers some depth, instead of a flat plane front. The corners will mount flush with a 5mm thick wooden wall, 40mm or 60mm height, so either use a sheet of 5mm plywood, or make the sidewalls yourself with a tablesaw.