I'm wondering if it isnt' some sort of comfort or fiddle object (like for stimming, skin picking or something. Or even just something to fiddle with as a habit.)

The things I got into the habit of wearing were usually specifically so I could fiddle with them (like twisting my earrings) so I wonder if it isnt' for something like that. Even if it's not made specifically for the purpose of fiddling (like those spinner rings).