Thank you Zekko for sharing onshape source!
Had trouble printing the original regarding bridges, supports and fused hinge…
Split the body in half with an angel to be easily glued in top of each other with support glue and replaced the print in place hinge by a M3 screw cut to length.
STL attached is for 10 cards; source to adjust attached in onshape:
https://cad.onshape.com/documents/ef7629ea31c6004f7bbc4d9c/w/ac39c484d5528b2f7f39bcb8/e/dacad6478f2c68b5717d76b1
The author remixed this model.