Epcot is the king of Pin Trading. Go from country to country, and hunt down those CMs! They tend to get less business (I think, never had to wait to ask to see their pins like other places) which means they probably see less scrapper pins. Plus, almost every CM has them. You just have to make sure to go to Disney owned stores. Many of the specialty shops are outside owned and thus, not CMs. The RnR has a giant drum in it's dump shop that has loads of pins, a good place to go first thing in the morning looking for new stuff. Look at the resorts. We take a tour in the afternoon one day to all the resorts and hunt down CMs for the pins.