Just for the hell of it, having 2 ideas I had being done before I had a chance to draw them, I whiped up this one with my only guiding thought being not using the bloody peacock (damn you Malak Taus for making an obscure religion with a single symbol !)
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Having suffered centuries of hardship, a yazidi visionary by the name of Faqir Al-Aziz arose with a simple message: "Nevermore". Never shall the dreadful childrens of Eve be allowed to pollute the holy land with their presence and despoil the yazidis of their rights. Gathering around him an group of faithful known as the Sons of Jar who grew to the thousand, he inspired a revolt that eventualy cleansed their area of christians and moslems and thus declaring their independance. Upon achieving power, they immediatly set about the important business of insuring purity within the country, outlawing litteracy, lettuce and the colour blue all of which can incur stoning (especialy the lettuce).
The flag: 3 green lozenges for the 3 castes (linked but separated), 5 white ones for the number of daily prayers and the red ones representing the 7 angels.