An easy project to turn pretty much any food box into a cute, two-pocket caddy for cards. These samples were made from dog treat boxes.
Short process video: https://youtu.be/xIAw3rKNaQg
Remove the top and bottom flaps from the box, then remove one side. Measure the front and back of the box and cut down to the appropriate size shown on the template. Make two pockets as shown, which will take one sheet of heavy-weight cardstock. Decorate the cover and inside of the box as desired, then attach the pockets.
Template for case to hold A2 cards (4 1/4″ x 5 1/2″)
Template for case to hold A7 cards ( 5″ x 7″)
Papercraft Crystal 