I haven't been to WDW, but I have heard that pin trading is much bigger there than at DLR. That being said there is still plenty of pin trading that goes on at DLR. Similarly there is vinylmation trading that goes on, but it's not a huge obvious thing. There are a bunch of set locations where it occurs and you can trade at each location once per day. I'm probably forgetting some of the spots, but this is where vinylmation trading was available when we were last there: Disneyana on Main Street (clear box), Emporium on Main Street (blind box), Star Trader in Tomorrowland (clear box), Five and Dime in ToonTown (clear box), pin shop in New Orleans Square (clear box), Fly 'n Buy in Condor Flats (DCA) (clear box), Off the Page in Hollywoodland (DCA) (blind box), Tower of Terror gift shop (DCA) (clear and blind box), World of Disney (DtD) (blind box), and D Street (DtD) (clear and blind box). I expect someplace on Buena Vista Street and someplace in Carlsand will also have trading. Emporium, World of Disney, and D Street seem to offer trading only at certain times of the day, and it's not clear to me if there is any set schedule.