This piece allows you to hold multiple cards as well as set them down in front of you on the tabletop.
Features:
The curved groove holds cards and helps hide them from nosy neighboring players.
Grip on the back also acts as a stand
Model Choices:
(Cardholder_Grip) Version 1 of the model focuses on comfortable grip, but would require it to be printed with supports.
(Cardholder_Print) Version 2 of the model might be slightly less comfortable, but is easier to print on a filament based printer.
The author hasn't provided the model origin yet.