This is an old 11x14 frame with a cut egg crate (lighting fuser from Home Depot). I saw something similar on another post but they built a huge wooden frame and made the egg crates 3 layers deep. I didn't find that necessary. As you can see, I have plenty of room to grow. The bottom row of copics keeps the frame at a nice angle. I'm sure this will work for awhile until I find the next best thing. This only cost $10 for the egg crate that was a HUGE piece which I only used a tiny corner. (If I had been patience, I'm sure I could've found a scrap somewhere free...haha) I wish some of my copic friends lived near buy so I can share. The copic holders in stores are costly. No, it's not portable, but I rarely take them with me. I'm a happy girl right now.