This my first attempt at a Boba Fett helmet, it took me a few weeks but I am overall pleased with the results. I'm not very happy with the dome, that's definitely something I should've worked harder on. Anyway, after making the cardboard helmet, I filled in all the gaps with lightweight spackling paste. After sanding it, I spray painted the helmet with paint I already had in my possession. I used silver acrylic paint for the metal looking parts and dent, I also used the silver to paint any imperfections so they would look more intentional.
I recently added the yellow lines and the visor.