Handing bone chips to Gunlok Jure in North Kaladim. Can hand them in individually or stacks of up to 1000. +2500 faction per stack of 1000 bone chips. Max negative to max positive takes 1600 bone chips. Quest: Bone Chips (Kaladim).
Completing the Stein of Moggok quest does indeed lower your faction with the Dwarven king, the only negative hit I belive in the entire quest. So, I save all my Bone Chips to turn in at the Kaladim Paladin guild, which gives positive faction with Kazon. This has been successful in keeping my Kazon faction up.
I've heard that you can lower faction with Kazon Stormhammer by completing the Stein of Moggok quest, which makes sense since not only does killing Clurg RAISE your faction with the dwarven king, but I, a gnomish enchanter, am very tragically kos to the king even when I am regarded kindly by his guards. Siiiigh! Who woulda thought.