I liked the twisted star box (which is also parametric) but it requires not only Art of Illusion but also a special under development and undocumented MetaCADEvaluator plugin that is part of the development version of CSGEvaluator for Art of Illusion:

objects.reprap.org/wiki/Builders/Metalab/AoI_CSG_Evaluator

and since I wanted a box with very specific dimensions I decided to make a version using my tool of choice - OpenSCAD!

File size < 3k instead of 12k! :-)

There are three primary variables:

1. the inner radius (i.e. the size of the hole),

2. the wall Thickness (used for top, bottom and lip) and

3. the star box Height (the height of the box w/o the lip/top).

The remaining variables:

sbLip, tFactor and tGap can be changed if desired.

They are documented in the SCAD design file.