I’ve actually got a few helmets. A Darth Vader one I picked up at Disney back in 1990 just before I turned 16. My costume stormtrooper helmet. A clone trooper helmet which was rescued from the rubbish at work. And one of the old Disney stormtrooper helmets Disney used to sell years ago. This was also rescued from the ri=ubbish. It’s all a thick rubber with no ventilation or anything. The eyes are just painted rubber with a few holes drilled into it to see out of.
I am thinking about experimenting with that last one to try and make a zombie trooper like the Deathtroopers novel…

BIG JOBBIES