Bologna or baloney is the sausage that has made more people into vegans than anything else. These are people who bothered to see what bologna is really made of: pig snoots and other odd bits finely ground as to be unrecognizable. While other varieties exist made of chicken, turkey or beef, for example, the confusion over whether chickens and turkeys have snoots or not have limited their popularity. Jewish dietary laws were invented specifically because Moses got a bad baloney sandwich once.
Due to the common misspelling, Oscar Mayer launched a campaign in which 5-year-olds spelled BOLOGNA, probably to make fun of those who couldn't.