here is a model of business card holder (standard size) to put on the desk, made for the #MAGIGOO corporate gift contest on fusion 360.
I wanted a modern design while remaining simple and here is the result.
There are 2 versions, one classic and one with a rectangle on the bottom right to put the name of the company or a logo.
I also modeled a support that clips on the holder to keep it at 40 ° on a table.
I also made this version to be able to take them everywhere with you: https://cults3d.com/en/model-3d/gadget/port-portal-car-portable-business-support -card holder