I am currently in the process of making my second Mandalorian helmet. My first one didn't turn out very well at all, as you might have seen by my previous Avatar, but I at least learned from my mistakes, and I'm hoping that this one turns out a lot better. This one will be mostly made out of 2.5mm thick sheet metal (which is a bear to work with!) and the only real custom part of it is that I'm planning on putting a fin of sorts on top, which will be based on ideas that I get from the Republic ARC trooper helmet. I'll be uploading photos soon, so any advice/tips would be greatly appreciated!