Borders from Natural Earth open map data (drawn along lines of actual control, so a few disputed areas may differ from maps you know). Flags from the open-source flag-icons project.
Shapes, flags and names are shuffled together in one lesson. This set covers 12 countries in South America, in three difficulty levels. After each answer you see where the country sits on the globe, its flag, its names in English and Chinese and in its local script. Missed questions come back before the lesson ends.