Started on a Mark 1 helmet a while ago, worked on it off and on for a bit. Didn't like where it was going so I started a new one a week or so ago. No inprogress shots, but it started life as a piece of sintra heated and formed around an old welding helmet. The front is pretty much where I want it going to work on the back next as well as some weathering. Hope to mold/cast this in the not to distant future.