The list of exotic minis in the storage panel are: Oakheart, Jack-a-lop, Undead Chicken, Orrian Wraith, Krait Witch.
Edit after BWE3: Ok so the wiki says it is possible to get them from the Mystic Forge. During the last beta i tried putting in minis from all different rarities but would only get a miniature of the same rarity in return (i.e., 4 rare minis into the mystic forge gives you 1 random rare mini). It will let you put doubles in but it will not let you mix and match rarities.
I was unable to figure out how to get the exotic minis. Has anyone else been able to?
Edited by ACWhammy, 28 July 2012 - 11:23 PM.