One of my favourite characters was a wizard/barbarian lizardman. He believed that if you defeated a powerful foe you could gain its power by eating its heart (and also knew that this wasn’t literal, it was a cultural thing). He explained to the party that he was very smart because “I ate a wizard, once.” In fact, the wizard had had a Headband of Intellect that Xarg took from his corpse. He disguised the headband by wrapping it in crude leather decorated with teeth, making it look like a tribal collar thingy, so that people didn’t know how important it was.