Cleirre Rethen is a one-on-one game I've published. It's webpage can be found here: https://sethgiolle.weebly.com/cleirre-rethen.html. These are Box Plaques for storing the Ballista, Catapult, Grapple Cannon, and Defensive pieces for the game. I use empty Reel Boxes for my storage. The Measure has four holes in its corners. Use those to know where to poke holes in the end of your box. Poke the holes, and add in the Plaque that fits!