Summary

Pretty easy to design! It's the AMMO flame made into a topper for 30mm shells. I'll probably upload the 20mm and 25mm ones later on <3

I recommend 2 walls @ 10% infill (gyroid), but do what works for your printer/filament! Vase mode works fine if you plan on just having it sit on a shelf.

Big thanks to Big Boss Campbell (https://www.thingiverse.com/LEGOmyAMMO) and Yaki (https://www.thingiverse.com/pyro3d/designs) for the original designs!