Good Morning!
It's possible. Anything is possible. If I remember, I may try this on my next visit in October. 'If' you've reset the magicband you plan on using in
MDE right before arrival and after room assignment, maybe it will work. Maybe not. Many times I've gone to the desk with one magicband and they supposedly 'fixed' my MB to work. Then I went to the room and eventually dragged out the other colors I might want to use and updated them myself. They then work seamlessly on my door and at the gate. During the time they were issuing free bands I accumulated 59 in my account. That's one for each of 59 trips, not how many I actually have in my possession because on many trips, more than half that number, I did not order but Disney sent a gray band to the resort for me, which I didn't accept or use. Those are still cluttering up my MDE. Can't get rid of them unless something has been implemented recently.
'If' they could clean out my account, I might actually purchase a favorite band. As it is I pay no attention to the for sale ones because they would only add to the clutter.