Commander card window for MTG Academic deck box

Many Magic the Gathering players ask the question: Why would The Professor's "dream deck box" not have a card window to easily identify the deck amongs others on your shelf?

This is a friction fitted attachment for the Gamegenic “The Academic” deck box, with a slot that that fits a rigid Ultra Pro 3"x4" Regular Toploader card cover. You just slide it at the end of the box, it'll still easily fit a double sleeved commander deck. Now the box is perfect.

• This shouldn't damage your box, but don't sue me if it does.
• Your commander card isn't held in place by anything, so it'll fall out if you turn the box upside down.
  • CC BY SA - Feel free to improve if you've got a solution.
• The first layer edges (top of the attachment) come out a bit sharp, so you might want to give them a light sanding.
• Printing support is needed for the window overhang. Automatic tree support seemed alright.