My testbuilds of Maat's Cap and the Drachen Armet.
I used heavier paper than Vivi's, so I was able to place the top portion of the Armet lower on the model, and have it hold solid. I don't think anyone doubted the Maat's Cap was buildable.
My printer finally started going dry just before I printed the Armet, so it's quite pink as a result, and slightly crooked as I rushed through it and accidentally let a piece get crumpled on the floor.
They all seem to be turning out slightly too small to wear, so I may go through and unfold them all again slightly larger.