Swiss Spaghetti Harvest 1957

First aired on April 1st, 1957 on the BBC. According to the Museum of Hoaxes

The Swiss Spaghetti Harvest hoax generated an enormous response. Hundreds of people phoned the BBC wanting to know how they could grow their own spaghetti tree. To this query the BBC diplomatically replied, “Place a sprig of spaghetti in a tin of tomato sauce and hope for the best.”