Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5751845.
I was having a bit of trouble printing the Phase II Clone helmet by @Hippig. https://www.printables.com/model/231871-phase-ii-clone-helmet-version-2 I needed to scale it a bit smaller (91%) to fit lego heads but the cheek pads got too thin to print well. So I remixed it keeping the 91% scale and filling the helmet to turn it into a stand alone lego head. After which it prints out quite nicely in helmet opening side down with the added bonus of making it printable with no supports.
I am building a set of lego heads so that my kids can try playing Star Wars Legion using lego figures. Here on Thingiverse https://www.thingiverse.com/ifoulds/collections/lego-starwars-legion reflected on Printable https://www.printables.com/social/90982-ian-foulds/collections/394300