After an awful lot of work and stench, the spermwhale jaws are finally smell free. Boiling them for three or four hours and laying them in the sun afterwards for three weeks did the trick. They are ready now. What's next? I don't know, put them on my desk or hang them on the wall as a trophy? I am not sure, but for one thing I am defenitively very sure and that is that I am glad that we didn't keep the complete skeleton.