Gabe I have some pieces of Casuarina (She-0ak) and red gum here that were sawn for knife scales. I rubbed olive oil into them and they then sat along a combustion stove for a year.....bloody marvelous ha ha.

And anyone that has been on the 'board' in an Aussie wool shed would know how wonderful natural sheep wool lanolin is on the old timbers... that might be good too!