Perhaps it's a slight tweaking of the Union Jack and Southern Cross design? Maybe it's a simple silver fern on black? Or is it something completely new?
Whatever you have in mind for how our flag should look, today is the last day for submitting designs online.
Scroll down to see the flag designs
Since May, the Flag Consideration Project has accepted people's ideas, but budding flag designers only have until midnight tonight for their artwork to be considered.
All sorts of designs have been put forward from variations on the current flag to, memorably, a sheep with a rainbow trailing behind.