OK. Allow me to introduce the lazy painters guide to painting bones. It is simple, fast, effective.
You will need:
1. Build your Skeleton. It is crucially important to use as many different types of plastic as possible for this (Just kidding)
2. Spray undercoat Chaos Black. If you want to you can touch up the areas the spray missed (though truthfully it is not important)
3. Using a
standard brush dry brush all the bone with
Bleached bone. No need to be neat or precise just go for it. If it takes you longer than 3 seconds to do each skelly then you are doing it wrong.
4. Using a
standard brush wash every inch of bone with
Flesh Wash (Oh the irony!)
5. Using a
fine detail brush pick out the large areas of bone (i.e. legs, arms, skull) with
Bleached Bone add a little water to thin it out so that the shading below can show through. Then carefully still using the smaller brush: dry-brush the not so large areas (i.e. ribcage, hands, feet, teeth).