Warhammer 40,000 – Many of my clients just need paint on models. Especially baseline troopers that don't spend a ton of time on the table (although that could be said for most things this editon, everything dies so fast...). For that I offer my basic paint service, it's inexpensive and meets the requirements of most events. Three colors, wash and basing.
Below is a group of Bloodletters I did for one of my regular Chaos clients. As you can see it's essentially red, bone, gunmetal and brass with a earthshade wash. I added green an some blood effect to make them pop a little more. The base is a simple gravel painted grey.