It's not much of a mod since I used the craftsman collection Oakley display. Basically I wanted to make a display for my Global War on Terrorism Gascan/Fuelcell and my POW Fuelcell. It's a piece of thin sheet metal and rain gutter metal I put on the back. Bought the ribbon rack and put them on the metal mesh. The Oakley I have on the POW display is my SI valve until I pull out my POW ones from my case.