In the part of Australia that I lived in for most of my life we had very few "festivals" as such. What we did have, though, was the Royal Show. Every year the Royal Show tours Australia, stopping at untold amounts of places along the way. One of, if not the, most common foods at the Royal Show was the Dagwood Dog, also known as the Pluto Pup. Essentially just a hot dog on a stick, dipped in batter then deep-fried, this is an absolute thing of beauty.