Like music blocks, I seem to have better luck with some cubis than others. I'm looking for straight across trades for my extra Magic Rocks (I have 3) for Gwen, Yeti, or Helga.
if you have "reverse luck" from me, maybe we can help each other out! IM me in game, I'll be popping in and out through the weekend.
UPDATE: trades completed or pending, will re-open only if any of them changes their mind. (or I get another Rock :) )