There's a couple of interesting photos in the following collection that could be useful for the "pencil shading" treatment
http://www.pettyandposh.com/remember...age-slideshow/
Just don't read the captions, you'll come away convinced that the author of the article is a dumb person writing dumb comments for dumb people - and that's me trying to be polite, they range from the laughable comment that napalm is "
a harsh chemical that severely burns the skin" to the mind-boggling absurd comment "
The dense jungles allowed the native soldiers to hide from the inexperienced American soldiers. For this reason, machine gun raids were needed to provide cover for foot soldiers."
How the hell do you carry out a "machinegun raid"?
And just what the hell
is a "machinegun raid"?
