Here are the basic steps. You need a big box, kraft paper (you can get rolls of this very cheap for packages at like Staples and stuff), black construction paper, yellow washi tape (I used cheap target brand stuff) and some mist or paint. I created a woodgrain stencil and cut it out with my cameo. I then drew in the wood beams and misted the pattern here and there. The lock is an old chipboard set I had, but you can make one out of paper and color it with a metallic sharpie.