"I feel like it's a catalogue of who I am and where I've been," Emma Keating said of her vast Disney pin collection.

I told my friend Tarah I was kind of into pins on our most recent Disney trip. My framed collection at home would disagree with my measured enthusiasm. As we stopped at nearly every pin trading board ...

Carissa Roeder, left, and Emma O’Hair display some of their Disney pins. The pair organized the Pittsburgh Disney Pin trading event, which drew more than 100 pin enthusiasts and raised nearly $580 for ...