Thought the Codex Bundle was super cool, and wanted to fit a commander deck inside. This is the closest I got lol. New to modeling so hopefully it works for some people as it did me.

You need to remove the back plate to the effect sheet to make this work, otherwise theres not enough room for the deck.

I used 6x2mm magnets to connect the cover. Put magnets in the slot, then put the magnets you want to connect to the cover on them, a dollop of super glue or adhesive of your choosing, and clamp the corners of the cover on, after a couple of hours it should be good to go. Would also recommend gluing the 3d print to the base of the box AFTER this, that way its lined up with the magnets.