This is my insert for Tapestry - a board game by Stonemaier Games. My goal for inserts is always about making the game easier to set up and play, and so this provides a number of boxes/holders that can just be moved directly to the table. One of the issues I had with the storage solution that came with the box was that the landmark buildings weren't ordered in any intelligent way. With this insert, you can pull the landmarks out of the box and know immediately which technology track they belong to.
I won't claim this to be perfect. For example, don't try to store this vertically. There also isn't as tight a fit as I might have wanted, because I ended up putting the mat holder on the bottom of the box instead of on top of the player boxes - it just worked better that way. The trade-off was a less snug fit for all the boxes.
My printer wasn't big enough to print the Mat Holder in one go, so I did a simple diagonal slice to make two halves. You could glue it, although I just leave it in the box as is.
I printed everything with a 0.8mm nozzle at 0.32 resolution. Very fast prints, but as you can see in the pictures, I need to do some post-processing.
You will need 1 of everything, and 5 player boxes. Print either the Mat Holder, or the Mat Split Left and Mat Split Right.
UPDATE 10-15-2019: I added two alternate storage solutions for the landmark buildings. If you have bases attached to your landmark buildings (https://www.etsy.com/listing/740585099/snap-on-bases-for-landmarks-in-tapestry), then the nifty storage boxes don't work, and you don't need the color coding, so these two boxes work in their place.
I used 0.8 nozzle for everything.