We enjoy the occasional fiber cracker. Occasional means that they end up stale because the paper wrapper doesn't get closed/won't close properly to keep air out. Whipped up a box from scrap Baltic birch and oak. Outside is Minwax satin poly; no finish on the inside. The crackers already taste like wood, but didn't want to add the smell of the finish. Lid is a piston fit. I used a cup hook to enable getting the lid out when the supply is low. Screws and glue. Clumsy is a thing around here, and the screws augment the holding power of the glue.