For Copic Markers - This is a cheap CD holder with a CD case in every other slot! You can take out the paper label and color its spine to match your marker pens, put it back in the CD, and put your markers on the CD shelf.
Have old CD’s that are scratched and no longer usable? Fold them one at a time into a dish towel (to contain fragments from flying out) use a hammer to smash them into different sized pieces! Glue gunned around an old mirror :)