From the Museum of Hoaxes’ list of Top 100 April Fools’ Day Hoaxes of All Time:
1957: The Swiss Spaghetti Harvest.
A BBC news show announced that a mild winter and the elimination of the spaghetti weevil caused a bumper spaghetti crop in Switzerland. The show ran footage of Swiss peasants pulling strands of spaghetti from trees. Many viewers called the station to learn how they could grow their own spaghetti trees.
1979: Operation Parallax.
A British radio station announced that the government planned to resynchronize the calendar. The reason? Britain had gradually become 48 hours ahead of the rest of the world because of switching back and forth from British Summer Time, so the government decided to cancel April 5 and 12 that year. The station received numerous calls. One woman asked if she had to pay her employees for the missing days.
1998: A Whopper of a Whopper.
Burger King published a full-page ad in USA Today announcing the introduction of a Left-Handed Whopper, specially designed for the 32 million left-handed Americans. According to the ad, the new Whopper included the same ingredients as the original, but all the condiments were rotated 180 degrees. The following day, Burger King issued a follow-up release revealing that although the Left-Handed Whopper was a hoax, thousands of customers had gone into restaurants to ask for the burger.
What's the best April Fool's Day prank you've pulled? Or even heard of.