I made a case for my filament tags, you can find those here: https://makerworld.com/en/models/32294#profileId-28924
The case fits up to 60 tags and uses a calmp to secure the lid in place. Simply place the lid on top and clamp it from the top by hooking the half circle protrusion and then slide the bottom under the case until it snaps into place.
Only supports for the bottom holes are recommended, but not required. I chose to print it with Bambu PLA Matte Charcoal and Basic Jade White, 0.2mm layer height and 10% grid infill.
Total print time was just under 4h 30m and 180g for me.