The Quinceañera can dance with her father the Waltz "Mi última Muñeca" (My Last Doll) and say good bye to her little girl years.

The Doll Throw (or other toy). The Quinceañera stands on a chair in the middle of the reception room. Younger girls make a circle around her and walk around at the music rhitm. She throws the doll and the girl who takes it gets to keep it. The meaning of this is the Quinceañera leaving the toys for the younger than 15 girls so she can go on. This is similar to the bouquet throw in weddings.
A variation is giving the doll to the next sister or a close relative. The Doll can be a new toy or one that she had since she was a girl.

For a Quinceañero the toy can be a male doll or a car.

Quinceañero:
Jesus Armenta also had let us know that in some regions there exist Quinceañeros o Quince Años celebrations for boys.