Hello!
I've managed to waste some of my time by creating this case convertion script for "almost" all the world countries. (at least the ones i could find listed)
It basically toggles Mixed Case for a country listed in the script (I.E.: trindad and togago -> Trindad and Tobago).
My next goal is to create a similar script for all world cities.
Feel free to tweak, modify and comment!
Take care! 
World_Countries__Mixed_Case_.mta (11 KB)