This Yemen flag colouring page only requires two colours - red and black - so the kids can colour it in and cut it out in no time.
Yemen Flag Colouring Page
Here's a colouring flag of Oman to print for the kids. The central and left section is a bright red, while the crest stays white and the bottom section is green.
Here is a colouring page of the Bahrain flag, ready to be coloured in with its striking red and white design.