Flying Keys

Not for nothing, though, was Harry the youngest Seeker in a century. He had a knack for spotting things that other people didn’t. After a minute’s weaving about through the whirl of rainbow feathers, he noticed a large silver key that had a bent wing, as if it had already been caught and stuffed roughly into the keyhole.

Harry Potter and the Sorcerer’s Stone
J. K. Rowling

Rowling, J.K. - HP Sorcerer's Stone