Hello, I am new to this board. I am into N scale trains. I have a 4x6 layout with 6 tunnels. We have 6 cats in our house so I have to keep this coardboard cover that I made over the top of my train layout so that the cats can't play king gong. I was wondering if any of you have an idea of how I can make a cover for it that is see through so that I can display my train board instead of keeping it hidden all the time. It would have to be light weight enough so that I can lift it off by myself. Thanks!!