Let us all hail the great American tradition of amateur inventors, personified today by the forgotten Herb Bartlett, whose love for hovercraft extended to making his plans available to the youth of the USA, contacted through his ad in Boys' Life magazine
The artist's concept: to walk in traffic with car horns strapped to her back.
Or, as the translated text from YouTube says: "Occupation of space for the transit of cars with loud support from a portable device with 4 horns (12 v) for cars."
Category: Motor Vehicles, Public Indecency, 1940's