The ones I recall seeing were basically stick figures, except for the 'naughty parts', which were, to say the least, oversized. The man's junk was easily twice the length of his leg, and the woman's baby place was twice the size of her head. It was pretty comical. Then again, there probably weren't too many art classes at the time, so you kind of have to excuse the crudeness of it. Whoever painted it certainly had sex on his mind.
"Thats a duck, not a dick. "
From The Long Kiss Goodnight