All Frisian flag (based on Scandinavian cross model), proposal. Not official; use is very limited.
<a href="//commons.wikimedia.org/wiki/User:Ninane" title="User:Ninane">Ninane</a>
Own work, made by <a href="//commons.wikimedia.org/wiki/User:Ninane" title="User:Ninane">Ninane</a> by looking at <a rel="nofollow" class="external text" href="http://interfrisianflag.groepfanauwerk.org/productssimple1.html">1</a>, <a rel="nofollow" class="external text" href="http://www.eurolang.net/index.php?option=com_content&amp;task=view&amp;id=2709&amp;Itemid=1&amp;lang=en">2</a> en <a rel="nofollow" class="external text" href="http://www.leeuwardercourant.nl/nieuws/regio/article936703.ece">3</a>