The 29th Ig Nobel Prize, an annual prize awarded to the weird, odd but sometimes head-scratching scientific research since 1991, was held at Harvard University in Massachusetts, U.S. on September 12, 2019. /VCG Photo

This year's winners include Dutch and Turkish researchers who figured out which nation has the yuckiest money and an Italian scientist who urges consumption of pizza for its health benefits. /VCG Photo

The ten awards at the ceremony were handed out by real Nobel laureates, and each winner was given one minute to deliver an acceptance speech enforced by an eight-year-old girl would with a devastating line: "Please stop, I'm bored." /VCG Photo

Each winner received a cash prize of 10 trillion Zimbabwean dollars, which is virtually worthless. /VCG Photo