You know what I do when I get utter bad luck on an item that can be traded on the MB (like Drippy)? I just buy it when I am fed up. There comes a point where you swim in gils and have nothing to spend them on.

I have a bigger problem with minions that can't be traded and for which there is nothing to do other than run the dungeon over and over with no end in sight (Brina is nowhere to be found in my game, nor is the tiny troll)