Each year, the Ig Nobel (ignoble, get it?) Prizes are given out to the funniest, most outlandish research produced from around the globe. Hosted by the Annals of Improbable Research, the Ig Nobels have been held at Sanders Theatre at Harvard University since 1991. The awards have been given out to "researchers" who proclaimed that black holes fulfill all the technical requirements of Hell, "biologists" who donned stilts and lived among goats, and "scientists" who have endeavored to discover everything from the existence of the five-second rule to the friction of a banana peel. This list documents the weirdest Ig award winners from the past two decades. Some semi-serious, some seriously satirical, this list of funny Ig Nobel winners is unlikely to disappoint.