Attentive fans of the first Terminator film will recall that Cyberdyne Systems Model T-101 gets described by time-traveling soldier Kyle Reese as a metal chassis covered in organic tissue.

The content is readily available and in the most part 1/72nd scale plastic soldiers, model vehicles and buildings.

The latest Raytheon Sarcos model -- likened to an "Iron Man suit" -- includes claw-like hand extensions and gives troops 20 times their natural strength and endurance.