As soon as I returned home from the hunt (Monday) I put the skulls in water to begin the process of doing euro mounts. As of last night (Thursday), I've made solid progress. Getting the horn sheaths of the cores of the skull of the Water Buffalo was a real pain. I could only fit one horn in a 5 gallon bucket at a time. I filled the bucket with boiling water and submerged the horn in the water for a half hour at a time (while bringing the next five gallons of water to a boil). It took several soakings and some hammer and knife work to free them. Meanwhile, the Big Boar skull was in hot water of its own.
This is what I started with on Monday.
Once I get all the meat off the Water Buffalo skull I will whiten all the parts and reassemble them.