Customizable rewrite of Markus Ortner's Business Card Holder. Click Open in Customizer to fiddle with the number and orientation of the card slots as well as the size of the base. Some fiddling may be necessary to find settings that work well with your cards. For example, the default 1mm slot size is a bit too much for my sample cards; pulling one out tends to tip over some of its neighbors.
Part of my Parametric Remixes collection: turning cool but inert things into living breathing thingizens. Or something like that.
Ensure retraction is enabled in your slicer settings to prevent any stray strands of filament from obstructing the narrow card slots.