Most online stores: Clotilde, Nancys notions etc. have precut corrugated plastic fabric organizers in a range of standard sizes with pre cut doohickeys to hold the fabric ends. I ordered a pile from NN on sale a few years back and they work well. They also fit the skinney IKEA billy bookcase which is where I stacked all my boards in color order. Nothing has fallen out or over so far.
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