British comedian Eddie Izzard is running marathons throughout the British Isles to raise money for Comic Relief. When he got to N.I. he decided to make up his own flag (it seems he was carrying the flags of England, Scotland, and Wales as he ran through them). It's dark green with a white dove in the upper fly (turned toward the fly end). He says he picked the green because it's the colour of the N.I. football jersey.