Who doesn't love a good prank? Answer: the person you play it on. Usually.
Many great hoaxes have been pulled off throughout history. Taco Bell "buying" the liberty bell. Orson Wells' War of the Worlds radio broadcast, George W. Bush beating Al Gore... the list goes on and on. Here's one you may not have heard of but it's great.
In 1957 the jokesters at BBC, ran a segment on the coming of spring after a mild winter and what that meant for Swiss farmers. The answer? An unusually large spaghetti crop. According to the Museum of Hoaxes, "Huge numbers of viewers were taken in. Many called the BBC wanting to know how they could grow their own spaghetti tree. To this the BBC diplomatically replied, 'place a sprig of spaghetti in a tin of tomato sauce and hope for the best.'"
Cook until desired tenderness and enjoy.
And not to be outdone... last year's BBC April Fools gift.