Well boiled them for about another 2 hours last night.
Let them cool overnight and cranked a big lag bolt and a washer into the core. Then used a claw hammer and tried to pop them out, no go. So I eventually went around between the core and horn with my filet knife and they eventually popped out.
Used the filet knife to scrape as much of the inside "stuff" out as I could.
I think I may have had beeter luck if I tried to pull them apart hot, rather than leaving them overnight,as the stuff btween the core and the horn gelled up like the stuff you find in a can of spam..
You guys were right they do stink...