Two Decorative Boxes

The boxes are each made of 4 identical pieces and assemble to make a box with approximate dimensions 6x6x6 cm; wall thickness is 0.5 cm. The box made with 4 a pieces can be disassembled by translating half boxes along x or y. It can be secured using a decorative band or held in a container box. The box made with 4 b pieces is secure. Adhesive is not required as all the pieces fit snugly together. Derived from
"Slide Together Container" https://www.thingiverse.com/thing:3777177

The openSCAD code creates boxes of any size or wall thickness. Instructions are included with the code.