for 3 years my son and i have built these wild creatures , we don't use paper mache , we use foam out of a can .we have aliens ranging from 6'8 all the way down to 2 feet ,there not scary looking , we don't want to scare children , we want them to use your immaganation you can build anything . my web site shows you how we build these creatures and the 3 headed alien monster is bigger than a cow .took 6 months to build , this is not a 1 day project , takes time and were just using house hold items , wood dowels , hot glue and gun , mesh , and foam . we measure of peoples bodies . all the aliens are measurements of bodies , and had a heck of a time measuring that cow , for the 3 headed alien monster .so here's are web site .enjoy , who knows what will make next year , http://alienvolcanomodels.homestead.com