PVC pipe marker holder
My hubby made my marker holder using 2" PVC pipe cut to 5" lengths. We used an existing plexi-glas box that was made for another project (no longer being used) and added a 1/8" molding across the bottom-front to slightly angle the front upward, so the makers stay in place. Total cost about $2.00 and some sweat equity. Ten feet of pipe equals 24 marker holders. The 5" is the size of my Copic, but other lengths could be cut to match your markers.