lol! Sorry for accidentally derailing 
(Wish you were around Armageddon in 09, I went through hell in that thing with so many negative comments. I havenāt worn it since.)
Anyway, sort of back on topic Iāve been reading about foam latex (I got to see a run of masks from a film a few years back but my notes are sparse) and want to tackle some projects in the next year 
While the longevity of casts and molds may not be equal to silicon itās still a better option for very large pieces in terms of weight and ease of using paints to colour it.