Here is a colouring page of the Myanmar flag to print for the kids. The stripes are a bold yellow, green and red, while the star in the middle stays white.
Myanmar 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.