Right so now that Eljay has revealed the mask, I am free to say that I am the one that made it. I know one person was actually able to guess that I had made Eljay a new mask. So props to @Hafynx for getting that right.
To avoid stealing thunder from the finished product I will upload a WIP image now, and for each day of brickfair. As some of you know I am a 3D model maker. While listening to the podcast 2 months ago, they mentioned 3D printing. At that time I was working on modelling a Kanohi Miru. I mentioned this and that I could print Eljay a new mask in the comments. He got back to me and I went to work.
Here is the the 3D model ready to be printed.
And the and the assembled raw print.