Passport Bag in Salome-Platforom

Here is my model of a passport bag.
This bag is designed for passports, and is meant to hang on the neck.
The bag can be tied around the neck by a ribbon or belt that passes through the two nooses.
The cap fits and locks the bag using corresponding grooves on the bag and dips in the cap. (See picture 6.)
The notches on the sides of the cap are to provide friction. The bag will be made out of plastic, so the notches will make the surface less slippery.
This bag will be made using a 3D printer.

The most important consideration while designing the box was security.

In order for the box to be secure, the cap is made 0.1 mm smaller than the bag. This will allow the cap to tightly fit over the bag. Also the cap has dips that will lock with the grooves on the bag. This design requires small amount of force to open the cap, and will provide maximum security for the contents.
Because the cap is smaller than the bag, chamfers are required. The chamfers will allow the cap to better slip on the bag.

The bag was made in Salome using Primitives>Box, operation fillet, operation chamfer.
The two nooses were made using operation extrusion, operation fillet.
The picture was made using operation extrusion.
The cap was made using operation extrusion and operation scale.

The character on the cartoon was taken from here.