These are my most played with monsters for RPGs, but never got painted. They're Reaper Bones, the white material, and cleaning them up sucked! I ended up slicing as much of the mold lines as I could, then I covered the rest with some thick layers of primer. I took this opportunity to try some speed painting techniques. I used contrast paints (xpress) and oils, but also traditional acrilycs as a final step. Despite my frustrations with the material, I'm very happy with the result (for the time it took) so I think I might try to replicate this process on some other appropriate models (plague bearers??)
