We had the best luck at the resorts on our last trip but Memento Mori was a good spot in Magic Kingdom for us also. My daughter got a nice Minnie VIP tour pin there. The biggest let down for us was Disney Pin Trader's at Disney Springs. They told us they were too busy to takeout the pin trading board and that they just take them out randomly throughout the day. We were pretty disappointed that Disney Pin Traders doesn't easily allow pin trading. In park pin shops always had the boards, we just found the selection wasn't the best.