I get mine from Larry at Big Donkey. They are fun to put inside a car every now and then and really add to the overall build. You get two different sized torso's and various period helmet heads in the package. Here's what you receive:
(https://media.fotki.com/2v2JegnPGxAyY5G.jpg)
"Hmmmmmm....5 heads are better than 1."
My "Jimmy Palmer" impression (character on NCIS)....
::)