The challege was: Design a flag for a post-revolutionary Arab country. The place, time, and nature of the revolution are up to you, but the POD must be after 1850.
There are five entries. Most have very detailed backstories that I did not post verbatim. Follow the links for the entire explanation of each. All can be found at the last page of the entries thread.
1. Charl: Socialist Union of Arab Republics
The Federation of Arab Republics turned out to be a very popular idea among its inhabitants, and attempts of Egypt to leave the Federation in 1977 due to disagreements about the exact terms of merger with Syria and Libya sparked massive popular uprisings and a military coup assisted by the two other member states of the Federation. . . See history
...At that point a new flag was designed for the country, replacing the dated former one (which was identical to OTL Syria's). The new flag was decided by committee and features the coat of arms of the union. It depicts the hawk of Qureish supporting a plain shield, two olive branches, and holding a scroll where the words "Union of Arab Republics" is written in Arabic. The gold star in the top left has five points to represent the current five member states of the SUAR (Syria, Egypt, Yemen, Libya and Tunisia).
And here is this vexicological nightmare:
2. MaskedPickle: Mahdist Arabia
The Mahdiyah, more commonly known as the Mahdist State or Mahdist Arabia, was created in 1979 following the Islamist coup by Juhayman al-Otaibi, who overthrew the decaying Saudi dynasty during the annual Hadj and proclaimed an Islamist State proclaiming his brother-in-law Muhammad bin abd Allah al-Qahtani as the Mahdi, the Messiah awaited to redeem Islam. . . See history
Black and green are the traditional colours of Islam. The Shahada, the Islamic creed, can be read on the flag.
3. Iserlohn: Socialist Union of Mesopotamia (الاشتراكي للبلاد الرافدين)
The Mawtini flag, to most Western diplomats refered to as the Mesopotamian flag, is the flag of the Socialist Union of Mesopotamia, a Communist country encompassing Greater Syria and the Iraq, since 1941. After the events of the Great War and the following recession the Ottoman Empire was in financial ruin even after crude oil was discovered in most of their predominantly Arabic-speaking holdings. . . See history
The symbolism for the flag is quite simple: the red background stands for Communism, the two blue bars at the bottom for the rivers of Euphrates and Tigris, the golden bar inbetween for the natural richness of the region and the writing in the upper left corner reads "mawtini" which means "my homeland" in Arabic, showing the bond between the people.
4. Laqueesha:
No real background behind this design, just an eagle coat of arms on a horizontal tri-colour background. The text on the coat of arms is the Shahada.
5. Sovereign12: Republic of Sinai
Also known as the Negev Confederation or the Wall of Peace, the Republic of Sinai, came about after the end of the Yom Kippur WAr, but it actually has roots further back in history. The Bedouin had always been a marginalized people in Egypt and a good part of the Arab world. They were still predominantly nomadic in the late 19th and early 20th centuries, and with the rise of extreme Arabic nationalism were seen as outsiders. . . See history
The flag was used by the largest militia of independent fighters during the Yom Kippur war. Only possessing canvas to make a flag, it was painted gold with some paint that was found. Black paint was used to make the camels which originally had riders (warriors) upon them. The Dove was not added until 1983 when the Republic was nicknamed the Wall of Peace and the riders/fighters were removed. The ends of the Egyptian and Israeli flags represent the Republics place as a Wall between Egypt and Israel.
There are five entries. Most have very detailed backstories that I did not post verbatim. Follow the links for the entire explanation of each. All can be found at the last page of the entries thread.
1. Charl: Socialist Union of Arab Republics
The Federation of Arab Republics turned out to be a very popular idea among its inhabitants, and attempts of Egypt to leave the Federation in 1977 due to disagreements about the exact terms of merger with Syria and Libya sparked massive popular uprisings and a military coup assisted by the two other member states of the Federation. . . See history
...At that point a new flag was designed for the country, replacing the dated former one (which was identical to OTL Syria's). The new flag was decided by committee and features the coat of arms of the union. It depicts the hawk of Qureish supporting a plain shield, two olive branches, and holding a scroll where the words "Union of Arab Republics" is written in Arabic. The gold star in the top left has five points to represent the current five member states of the SUAR (Syria, Egypt, Yemen, Libya and Tunisia).
And here is this vexicological nightmare:
2. MaskedPickle: Mahdist Arabia
The Mahdiyah, more commonly known as the Mahdist State or Mahdist Arabia, was created in 1979 following the Islamist coup by Juhayman al-Otaibi, who overthrew the decaying Saudi dynasty during the annual Hadj and proclaimed an Islamist State proclaiming his brother-in-law Muhammad bin abd Allah al-Qahtani as the Mahdi, the Messiah awaited to redeem Islam. . . See history
Black and green are the traditional colours of Islam. The Shahada, the Islamic creed, can be read on the flag.
3. Iserlohn: Socialist Union of Mesopotamia (الاشتراكي للبلاد الرافدين)
The Mawtini flag, to most Western diplomats refered to as the Mesopotamian flag, is the flag of the Socialist Union of Mesopotamia, a Communist country encompassing Greater Syria and the Iraq, since 1941. After the events of the Great War and the following recession the Ottoman Empire was in financial ruin even after crude oil was discovered in most of their predominantly Arabic-speaking holdings. . . See history
The symbolism for the flag is quite simple: the red background stands for Communism, the two blue bars at the bottom for the rivers of Euphrates and Tigris, the golden bar inbetween for the natural richness of the region and the writing in the upper left corner reads "mawtini" which means "my homeland" in Arabic, showing the bond between the people.
4. Laqueesha:
No real background behind this design, just an eagle coat of arms on a horizontal tri-colour background. The text on the coat of arms is the Shahada.
5. Sovereign12: Republic of Sinai
Also known as the Negev Confederation or the Wall of Peace, the Republic of Sinai, came about after the end of the Yom Kippur WAr, but it actually has roots further back in history. The Bedouin had always been a marginalized people in Egypt and a good part of the Arab world. They were still predominantly nomadic in the late 19th and early 20th centuries, and with the rise of extreme Arabic nationalism were seen as outsiders. . . See history
The flag was used by the largest militia of independent fighters during the Yom Kippur war. Only possessing canvas to make a flag, it was painted gold with some paint that was found. Black paint was used to make the camels which originally had riders (warriors) upon them. The Dove was not added until 1983 when the Republic was nicknamed the Wall of Peace and the riders/fighters were removed. The ends of the Egyptian and Israeli flags represent the Republics place as a Wall between Egypt and Israel.
. But it's true, you're clearly ahead. The poll stays open for another 2-3 days, so you've got time to think of something 
