I just discovered a company called Jamrags, who exist solely to create extremely offensive T-Shirts (their slogan is cotton for c**ts).
And by extremely offensive, i don't just mean cutesy and kind of rude, but seriously the owners should be in jail kind of offensive.
Like the one pictured above which says "Calm down dear, lets not turn this rape into a murder!" (makes me angry even typing it!!). They also have other equally charming options such as;
"Feminists are big, fat, hairy dykes!" and "I'm not racist. Racism is a crime and crime is for black people!"