Always lost my small screwdrivers. This little toolbox keeps them together.
Original SCAD file is included. The box is parameterized (x by y tool positions) hence resize to your needs (and printer capabilities).

Scliced in Slic3r with 3 solid walls, bottom and top layer. 10% infill and every 20 layers a solid layer. Resulted in a fully solid box when printing in PLA.