Playing card holder

We were going to try to play a card game over a video link, so we needed some kind of card holder. I don't know if this is any better than any other design here, but here it is anyway.

At least grips the card well enough to not fall off when moving it by holding on to the card only, and also doesn't use much plastic.

And it comes with source code (FreeCAD).

(Update: Playing cluedo with one remote player on video call really does work quite well, it was fun!)