However, I saw some mixed reviews regarding the materials and durability so I attempted to just make one myself.
To save time, I bought some project boards from Lowes that were already roughly the right size. I just needed to trim them and assemble it all together. It still needs some more sanding and some kind of finish (I need to do some research to figure out what will be safe for the decks), but it does the job for now.
Pay no attention to the decks I put in it for the picture, I'm still in the middle of organizing my collection

