Paper plane
From Tardis Wiki, the free Doctor Who reference
A paper plane was an aerodynamic shape resembling an aeroplane which a sheet of paper could be folded into. If folded correctly, a paper plane could be thrown and sail through the air with considerable distance and accurate aim.
Jack Harkness made two paper planes, one for his own amusement, and one to deliver a message to a hypnotised Gwen Cooper. (PROSE: The Wrong Hands)
