After a very long time, maybe a couple of years now, I've been able to build a 1:1 scale (about 20" tall) Martian head. 

This is a NOT 3D sculpture. I've included images prior to painting. Each bust is made using hand poured resin—no plastics, into a handcrafted mold that is then filled with hardened dense marine quality foam. I think you'll agree that the attention to detail is spot on and very accurate when compared to other very sloppy creations being offered out there. Each bust is hand made. The eyes are painted wood and can be popped out and rotated to any position. Just one available for sale, once this goes it will be awhile before I can make a new one. No reserve on this listing. Shipping weight is 13 lbs in a carton that measures 23 x 15 x  15.