I am not sure how this one is supposed to work? O. Henry's original short story works because both people sacrifice their most valuable possession to buy a gift for the other, and both gifts turn out to be (immediately) useless because they are supposed to complement said sold possessions. In this case, only Rose is concerned with making a good gift, and instead of sacrificing her possessions, she instead plucks some other flowers. She then gifts the resulting flower crown to Birdie, who can just accept it since she didn't even think of giving Rose a gift, let alone sacrifice her head/hair/wings/whatever for it.
So what is even the point of quoting "The Gift of the Magi", other than to sound Deep As Fuck™?