Maybe it was a ring that looks like the ring their favorite character, whom they consider a friend and have a very deep connection with, wears.
Maybe it was a bracelet from their mentor, reminding them that they are a guardian angel to their friends and family.
Maybe it was a handmade bracelet from their best friend reminding them that their friend loves them and is always thinking about them.
Maybe it was a gift from their sister that came during a rough patch in their life brightening their day just a little.
You know what I'm talking about. The episode where they're frantically looking for that once special object that they lost or misplaced and everyone around them is like, "dude it's no big deal, we can just replace it," but they really can't because it won't have the sentimental value. They can't replace it because the replacement will never have the same memories and emotions the original had within it.