With the 4th of July and Canada day happening, nails inspired by both occasions would be suitable. But since I am from the United Kingdom and the Queens Jubilee (even though it happened a month ago) the flag this would be inspired would obviously be the UK flag.
I'm not too proud of my efforts, it was rushed and not executed very well. The shade of blue is incorrect, but I didn't bring it (Barry M Blueberry Ice Cream would've been perfect) so I made do. Also if my white nail polish hadn't been really gloopy (standard) and if I had a red striper, things would've been much smoother.
White: Sally Hansen - French White Tip
Red: OPI - Dutch Tulips