Get your minds out of the gutter. I'm talking about the quick and dirty paint job my wife and I just slapped on my Korean infantry while our son's taking a nap. Here's a pic (click to embiggenize):
The guys in off white are the light infantry (Red Box Korean Guerillas, now on sale apparently), and the guys in red are the heavy infantry (Red Box Korean Heavy Infantry, also on sale).
We'll try and get the samurai and ashigaru painted in the next couple days. Nothing too detailed, as above I need them functional enough to see at a glance what troop type (and force for the Japanese) they are.
It ain't pretty, but it will work. Quick and dirty.