Seeing that everyone was already singing, Kurumi looked around frantically for some sort of garbage. The first thing she spotted, unfortunately, was the remains of the box of cookies. "Excuse me, Lord Borr," she said reached out and taking the now empty box slowly from his hands. "I will be needing this."

Kurumi began to reach for her wand, when wizarding law rang in her ears. Wait...she wasn't allowed to perform magic outside of school. Turning her attention back to Lord Borr, since he did seem to be all official and all that. "With your permission, sir, I would very much like to transfigure this box into a piano so that I may accompany the others in performing the school song."