Short, sweet and simply straight to the point: How about turning the mini’s from items in the inventory to summons from a window within the hero panel. Very similar to the new wallet with currency. Open the window and click the mini to summon it (account-wide)
This would be quite a nice change to summon your mini’s on ANY character you play instead of just the one you have the item in the inventory of, eliminating the hassle of dropping it into the bank and moving to the alt of the day you decide to play. I myself have 5 lvl 80’s I play for different parts of the day for different events or dungeons (Temples, Arah, Fractals, etc.)