You mustn't blame yourself for this tragedy.

Andre Agassi

These components are much harder to duplicate, and so your homebrew answer is unrealistic unless you're willing to spend lots of time cutting cards and painting little wooden blocks […]. This discussion then basically boils down to whether or not you suffer from incurable parakeetitis, which I do. I need to see all the shiny little parts, or something's missing...

The close helmet is equipped with a falling-buffe (visor), that can be lowered for more air and a better view, and raised for maximum protection by depressing or releasing a lug (shown directly below the sitter's thumb).