This is a Card box i modeled, the magic card is printed twice and super glued to the front and back. I used raw filament as pegs for the hinges and then melted the ends down a little which allows it to stay in place.
Also i have 1/16 IN diameter holes on the corners of the top and bottom pieces so magnets can be place there, though with the tight hinges, the lid stays closed on its own pretty good.
The spine has 2 divots for 2 D20 dice, you can then use the lid for your Library and the box for your graveyard or vs versa.
I am working another version for 100+ cards with additional features, but i wanted to get this model shared first ;)