I came across this fun service while surfing.
The Dialectizer takes text or other web pages and instantly creates parodies of them! Try it out by selecting a dialect, then entering a URL or English text below.
You have several choices including Redneck, Jive, Cockney, Swedish Chef, Moron, Pig Latin, Hacker and my personal favourite Elmer Fudd.
You can dialectize a block of text or an entire web page.