A bit of high-tech, and a bit of old-school leather work. My favorite way of doing things. My leather working skills aren't good yet, but they are getting close to fair. I love being able to do stuff.
It's even on GitHub if you want one of your own. https://github.com/creuzerm/openscad-projects/tree/master/Leather%20Business%20Card%20Holder
Lots of photos with descriptions to look at in the album.
In album 3D printed & Leather business card holder
My new business card! I added a NFC tag inside the case so I can also just tap a smart phone to the business card holder and transfer the data that way. A very high-tech business card holder.
The logo doesn’t show well under flash yet. I suspect a few months in a pocket will change that. You can see how I started at the computer & 3d printer to make the business card holder.
My printer is pretty loose and sloppy, so I clean up all the holes with a drill press. A few minutes here saves lots of frustration when sewing.
I am loving the rotary cutter for cutting this thin leather. No pulling and stretching and causing ill-fitting leather sides.
I wanted something that I 3D printed that I can show people what 3d printers are capable of. This doesn't really fit the bill, too much leather and 'other' stuff incorporated into it.
http://www.aeroconcept.co.uk/products/card-cases/#g7i0 and https://www.kickstarter.com/projects/distilunion/minimal-pull-tab-wallets-wally-sleeve-and-bifold/description are my loose inspiration.