I for one, would like to see a close quarters self defense blade from
Bussekin. Something effective if attacked in a car, a hallway, etc.

As far as the appropriateness of the OP, I would have thought it would be frowned upon. I would like clarification.
As an artist who also happens to work in the engineering field for 37 years,
I can understand the desire to create and share some 3D solid models of wish list knives. (my avatar is one of my sketches- "After the Battle")
That said, the last thing I think any of us wants to do is go against the
spirit of the forum rules.