paper airplane
n.— «So far, it’s only a paper airplane. But the Airbus A3XX has already generated a war of words commensurate with its size on both sides of the Atlantic between Boeing and its archrival.» —“Boeing, Airbus Battling Over Biggest Commercial Jet Ever” by James Wallace Seattle Post-Intelligencer Jan. 10, 2000. (source: Double-Tongued Dictionary)