EDIT: These can all be toned down and changed - it's really just the design that matters at this stage.

Been working on a pseudo 3D looking version (I know, there are those who don't like the shiny coin look - that can be changed easy peasy if required)

http://i34.tinypic.com/1zyv9zq.png

And then without the dramatic 3D tilt:

http://i34.tinypic.com/2hnar5x.png

And a final one to show the difference in lighting / colour (it can be whatever the judges want really):

http://i37.tinypic.com/2qd97k8.png