Artist Alexander Calder was commissioned by Braniff to design 3 aircraft though he only designed 2: The Spirit of South America, a Douglas DC-8, a Boeing 727 (The Bicentennial Aircraft), and a Spirit of Mexico (727) that was never produced at the time of his death. These models have been seen at auction for prices of $150K to $250K. I named my son, Calder, after this famed artist.