An ogre coffin key is a members' item that is used to open locked Ogre coffins in the Zogre Flesh Eaters quest. This key can only be used during and after the quest. The keys are dropped by Zogres and Skogres as a 100% drop. You can also pick lock the coffins if you have 20 Thieving. It is possible to receive this from spending 2 zeal on the Gamble option in Soul Wars. They are commonly used in new player money making methods.