As an avid fan of the Halo franchise, I wanted to make some sort of prop from the game for years. I got a raw casting of the Halo 4/5 Recon helmet from Armory Props and then completed all of the finish and electric work. The helmet was painted factor new first, and then weathered to look somewhat battle worn. After this was complete, I installed various LEDs, speakers, and a Pi Zero W to drive a HUD.