Ethan wrote:
Does anyone know what the orange body is made of on the last one? It
looks like foam of some sort...but I can't really place what it is or
how it was done?

The orange bodies are made from closed cell eva (ethylvinylacetate)
foam.
The extended body version has the foam wrapped around stiff but
hidden piece of plastic of some kind.

Evazote is a brand name associated with eva foam.
Eva foam does come in different densities.
Evazote is not bad--it's not the heaviest eva foam out there--but
it's not the lightest either.

Eva foams can't be dyed with Rit, but they can be colored
with solvent-based marking pens.