Honest-to-goodness Nobel Laureates, along with a few non-Laureates, indulged their silly sides on Thursday night when Harvard University hosted the 2007 Ig Nobels ceremony.

The Annals of Improbable Research magazine (that sounds like something Dave Eggers would have thought up) grants the "Ig Nobels" for achievements in "unusual and imaginative scientific discovery."

Here's a list of this year's winners in all the Ig Nobel fields from the Guardian UK:

Medicine: Brian Witcombe of Gloucester and Dan Meyer of Antioch, Tennessee, for their report in the British Medical Journal, Sword Swallowing and its Side-Effects

Physics: L. Mahadevan of Harvard and Enrique Cerda Villablanca of Santiago University, Chile, for studying how sheets become wrinkled

Biology: Johanna van Bronswijk of Eindhoven University of Technology, Netherlands, for a census of the mites, insects, spiders, pseudoscorpions, crustaceans, bacteria, algae, ferns and fungi with whom we share our beds

Chemistry: Mayu Yamamoto of the International Medical Centre of Japan, for developing a way to extract vanilla essence from cow dung

Linguistics: Juant Manuel Toro, Josep Trobalon and Núria Sebastián-Gallés, of Barcelona University, for showing that rats cannot tell the difference between a person speaking Japanese backwards and a person speaking Dutch backwards

Literature: Glenda Browne of Australia, for her study of the word "the" and the problems it causes when indexing

Peace: The Air Force Wright Laboratory, Dayton, Ohio, for instigating research on a chemical weapon to make enemy soldiers sexually irresistible to each other

Nutrition: Brian Wansink of Cornell University, for exploring the seemingly boundless appetites of human beings by feeding them with a self-refilling, bottomless bowl of soup

Economics: Kuo Cheng Hsieh, of Taiwan, for patenting a device that catches bank robbers by dropping a net over them

Aviation: Patricia V. Agostino, Santiago A. Plano and Diego A. Golombek of Argentina, for the discovery that Viagra aids jetlag recovery in hamsters

In honor of the Ig Nobel for extracting vanilla essence from cow dung, Toscanini's created Ig Nobel Vanilla, and Sushiesque was there to witness the moment and try out the flavor.

Speaking of being sexually irresistible, the Ig Nobels may also bestow that characteristic on its participants. According to the Herald, one of the Ig Nobel ringmasters and Nobel Laureate, William Lipscomb, who is 87, is still a "babe magnet" who could teach the fellas on Beauty and the Geek a thing or two.

Image of Toscanini's Ig Nobel-flavored ice cream courtesy of Sushiesque.