But then I need to find a caster who is interested in taking care of that part of production/distribution. Sadly enough I don't have the time/energy/skill to take care of all that other stuff, then split the sales incomes, or something.
In the meantime, I quickly doodled this together, as a distraction:
It needs a lot of tweaking, tried to put it on Shapeways, but it mentions there are all sorts of thin parts which need to be fixed. Above that, printing it is too expensive at the moment. Will probably try to make it multipart, so that you can add the shelves in yourself. That way I can hollow out the books.