I used a 3d print which was processed and painted accordingly. Maybe if someone printed this in resin, you could cast this in latex? Not sure how this works exactly, but here is a link to that file:
[URL unfurl="true"]https://www.cgtrader.com/3d-print-models/art/sculptures/boba-fett-by-temuera-morrison-3d-print-model[/URL]
The size you get by default is in 1:6 scale, but I simply scaled mine up to 1:1. I think it looks very convincing.