And the winners are:
Physics
Kiyoshi Mabuchi, Kensei Tanaka, Daichi Uchijima and Rina Sakai for their work on the reduction in friction caused by various banana skins under the force of a shoe sole on a linoleum floor.
Neuroscience
Jiangang Liu, Jun Li, Lu Feng, Ling Li, Jie Tian and Kang Lee for their study of face pareidolia.
Psychology
Peter K. Jonason, Amy Jones, and Minna Lyon
Those people who habitually stay up late are, on average, more prone to psychopathy than early risers.
Public Health
Jaroslav Flegr, Jan Havlíček and Jitka Hanušova-Lindova, and to David Hanauer, Naren Ramakrishnan, Lisa Seyfried,
The effect of feline transmitted Toxoplasma gondii on human pet owners, causing depression, schizophrenia and obsessive compulsive disorder.
Biology
Vlastimil Hart, Petra Nováková, Erich Pascal Malkemper, Sabine Begall, Vladimír Hanzal, Miloš Ježek, Tomáš Kušta, Veronika Němcová, Jana Adámková, Kateřina Benediktová, Jaroslav Červený and Hynek Burda
A study of canine behaviour, the preference of dogs to align their bodies along the north-south axis of the Earth's magnetic field when defecating and urinating.
Art
Marina de Tommaso, Michele Sardaro, and Paolo Livrea
The effect of looking at pretty and ugly paintings on pain sensitivity.
Medicine
Ian Humphreys, Sonal Saraiya, Walter Belenky and James Dworkin
The use of cured porn for treating "uncontrollable" nosebleeds.
Nutrition
Raquel Rubio, Anna Jofré, Belén Martín, Teresa Aymerich, and Margarita Garriga
The use of bacteria cultured from human infant feces in the production of Probiotic Starter Cultures for Fermented Sausages.