Making a Master Chief helmet

I am trying to find a way of making a helmet that is cheap and easy using readily available materials and a simple process such as stacking

Assembly of Master Chief helmet

Original helmet design found on SFMLab, from Halo Reach

I imported the helmet into SlicerforFusion360 to cut it inot slices and make it stackable. I printed off the sheets to start assembling.

Back view in SlicerforFusion360

Front view - I built it using foam board

Side view

Back view

Bottom view

Bottom view 2