The world's flags given letter grades
65 / 100 (-weapons, -corporate logo)
Machete on flag nicely depicted but not wise idea.
Central African Republic
50 / 100 (+original, -too busy)
Do not attempt to disprove the four-colour theorem on your flag! (This goes for you, too, Mauritius).
Northern Mariana Islands
2 / 100 (-graven images, -too busy)
Appears to have been constructed from clip art. Truly awful.
85 / 100 (+simple)
Not quite as nice as Somalia.