You might want to check out Mellie Z’s Fineline Workshop on Etsy. If you’re luck there will some of these monster boxes in stock. Most likely you’ll want to browse and admire the collection of whatever the store has to offer. It’s great stuff!
Pro tip – all gaming households need a monster box to put stuff in. Stuff includes dice, character sheets, marker pens, meeple, counters and the souls of your enemies. This household has a Chester.