Inserted box and simple slide lock idea

[Blancanegra]

The inserted box was done using the BasedBox template and modified later in CorelDraw. The slide lock or holder is very simple, so to code a parametric generator wouldn't be a difficult task. I think those ideas would be helpful for someone.

[florianfesti]

Selecting an f or F as top_edge of the universal box will generate such a brim as an alternative to a flat lid. While this does not come with rounded corners or options for the size it should be easy to adjust using Inkscape.

This slight lock is a very neat idea though. It can be a separate generator.