Hunter: remains of a long fried memory unit. Was it mine? A friend's? I may never know, but I keep it, in case my old life flashes back.
Warlock: an old tome of unknown significance, perhaps it had been mine when I was first initiated? These details may never be known, but the book glows with a strange purple aura...
Titan: the gnarled horn of the Captain that cost me my right eye.