A set of boxes to fit the various tokens that belong to each faction; not strictly necessary, but was a much prettier solution than the ziplock bags that came with the game originally. I used a 0.3mm tolerance as I printed in ABS (and this worked fine for me), so you may find this a little looser than intended with PLA.
For best results when storing each faction, place the Battleship on the very bottom, then stack all Destroyers on top of the Battleship in layers of two. The gap left should be filled with layers of Orbital Turrets, then place the Colony ships on top of everything in as few layers as possible. Finally, throw everything else on top of that, tapping the box to help things settle.
Alternatively everything can be stored pretty haphazardly too, though the box will be less easy to close. YMMV.
Remixed, though using no actual files from Dredrei's fantastic storage for Vast: The Crystal Caverns.
Layer height doesn't matter a whole bunch; had them printed through 3Dhubs. One printer used 150μm, another used 25μm, though I feel the 150μm turned out less choppy. All of them had the tops of the lids sanded down and lightly oiled afterwards regardless.
The faction icons were taken from the rule book, before being simply traced/replicated onto boxes constructed in Sketchup.