Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5093768.
Remix of Parks + Nightfall insert by ThoxicThox. The original was too tight for my box and some of the thin pieces bowed. My modifications had 2 goals: 1) to add finger holds to make the cards/pieces removeable without removing the insert entirely, and 2) to organize the park cards next to each other making space for the small camping board to fit and make the lid fit more tightly. I also made the space for the triangular first player marker larger because mine didn't fit in the space. There is plenty of space for sleeved cards, and/or future expansions.
I have a retail version of the game if that makes any difference.
Update 11/5/21: Added updated version of the Campfire box. My first design was slightly smaller, this new one fits tightly in the box.
Update 12/9/21: I added a piece for the Parks cards that holds the start and end trail tiles and divides the park deck in half to keep them organized. Also remixed from ThoxicThox. The camping tile now fits on top of the Park cards, and the divider is slightly lower to keep it in place. I also have sleeved my Parks cards as you can see in some of the photos. In order to fit in this insert sleeves must be 71.5 mm or less. I used these from sleeve kings: https://sleevekings.com/products/sleeve-kings-wotr-card-sleeves-70x120mm-110-pack-60-microns-3?_pos=3&_sid=1acbe3771&_ss=r
Update 1/1/22: I uploaded a resource organizer for PARKS that helps keep track of your 12 resource limit. It is the same size as a PARKS card and doesn't take much extra space. Check it out here: https://www.thingiverse.com/thing:5182533
Update 2/25/22: I had a request to make the words inset for the PARKS cards to avoid damaging the cards and save space. Parks Cards v2 has the words inset .2 mm, and would probably print best at that layer height.