The Pi Flag on 3/14

The 'Pi' flag combines the international maritime flags of 3, 1 and 4 to represent the estimated vale of 'Pi' at 3.14.  The French looking part represents the number three, the red disc on white represents one, and finally the white cross on the red disc represents four.

The great coincidence is that these maritime numbers nicely fit into each other.  Additionally the flags of France, Japan, and Denmark are accidentally apparent when you united them to make up the symbolic flag for 3.14!

A neat unintended coincidence is that the Pi flag happens to have a circle in it, and looks like is it is a four piece of pizza pie!