I used Rebound 25 silicone from Smooth on to make the mold, I then use Smooth Cast 320 to do the Urethane plastic castings, its also made by Smooth on, If you plan to mold the MK VII I would go on youtube and watch a couple of molding videos, they help out alot, The MK VII is an easier helmet to mold, I was going to make one myself just haven;t had a chance to build one yet
Yeah I felt the same way also, I built this helmet for a Halo fan film and its what they requested, otherwise I probably wouldn't have built it, but It has grown on me some