How long do you need to bank her? For a week or so you can just give the cage (with attendants and candy) a drop of water a day. If you need to keep them a few weeks, you can just put the cage in a box with some air holes and add new bees from time to time. If you need to keep them a few months, just set up a nuc with a frame of brood and a frame of honey and introduce the queen.