Living-hinge card case

A slim case for bank cards or business cards that folds shut on a thin printed hinge instead of a pin or a snap. Two shallow trays sized to your cards print flat side by side, joined by a flexible strip; fold it and they meet face to face. Adjust the card size, how many cards each side holds, and the hinge thickness for your material, and add corner magnet pockets if you want it to hold itself closed. PETG makes the best hinge.