Belmont Shores Chocolate Festival

So I need some help deciding what I am going to make for the Belmont Shores Chocolate Festival that is on Febuary 5th.  There are 3 categories; best chocolate cake or pie, best chocolate cookie or brownie, and best unique chocolate treat.  If you have any suggestions, please leave a comment, or vote in the poll on the right side of the webpage.  I only have until Friday to decide and turn in my application.  Thanks in advance for any suggestions or recipes!!