2007
- Aviation: Patricia V. Agostino, Santiago A. Plano and Diego A. Golombek, for discovering that hamsters recover from jetlag more quickly when given Viagra.
- Biology: Johanna E.M.H. van Bronswijk, for taking a census of all the mites and other life forms that live in people's beds.
- Chemistry: Mayu Yamamoto for extracting vanilla flavour from cow dung.
- Economics: Kuo Cheng Hsieh, for patenting a device to catch bank robbers by ensnaring them in a net.
- Linguistics: Juan Manuel Toro, Josep B. Trobalon and Nuria Sebastian-Galles, for determining that rats sometimes can't distinguish between recordings of Japanese and Dutch played backward.
- Literature: Glenda Browne, for her study into indexing entries that start with the definitive article "the".
- Medicine: Dan Meyer and Brian Witcombe, for investigating the side-effects of swallowing swords.
- Nutrition: Brian Wansink, for investigating people's appetite for mindless eating by secretly feeding them a self-refilling bowl of soup.
- Peace: The United States Air Force Wright Laboratory in Dayton, Ohio, for suggesting the research and development of a "gay bomb," which would cause enemy troops to become sexually attracted to each other.
- Physics: L. Mahadevan and Enrique Cerda Villablanca for their theoretical study of how sheets become wrinkled.
Read more about this topic: List Of Ig Nobel Prize Winners