A friend of mine recently asked me how I painted bone, so instead of telling them, I said I would create a tutorial for them to have so they can refer back to it. This is how I paint bone on skeletons and other actual bones, rather than freehand. I will do a seperate tutorial for freehand as it is slightly different.
Step 1: I use these paints for bone:
Step 2: Collect the miniature and apply a base coar of Rakarth Flesh.
Step 3: Wash with Agrax Earthshade and let dry
Step 4: Drybrush with Ushabti Bone.
Step 5: Drubrush with Screaming Skull.
Of course, you can go lighter than this but I like my skeletons to look a bit dirty. Nothing comes out the ground clean after all.