If you´ve played World of Warcraft (or even if not), you have probably seen this one; on flags, guards or tabards.
That´s right, Silvermoon! Home of the Blood Elfs, the Sin´dorei and just a very beautiful place in the game.

Use this chart for whatever you want: hats, scarves, pullovers, sweaters, flags, gloves or really anything you can think of.

The third photo shows what the chart would look like if you used it. I wanted to make a hat, but did some serious counting error at the top and the hat is now unwearable. But the symbol looks awesome.