To enhance the gory mouth effect, I quickly modeled some drool in Maya to add to the mesh. A Mia material X shader with a glass-preset is used, in order to get the wet feel, refractions and transparency. The settings had to be altered somewhat, just so that it would not be completely transparent – by adding an alpha to the transparency.
Furthermore I created a very simple animation rig, and animated the drool, to make it more realistic. The rig consists simply of joints and Ik handles.