If you make and install this rear servo mount (http://www.thingiverse.com/thing:1607848) you may then assemble the skull parts into two halves which may be mounted as just two solid assemblies. These little dots are to be glued into the unused screw holes, ground off and sanded smooth to your preferred finish. We used an ABS / Acetone slurry then sanded the whole skull for a matte finish.
Filler_Dots_Maya.stl | 265.3KB |