If you don’t see your country in this list, try checking out my other flag sets: Grunge Flag Sets
Note: All credits go to the creators of these wallpapers. Most of them, as far as I can tell, were made by think0@deviantart.
Download the wallpapers from this set compiled into a .zip file here: link
Awesome Wallpapers 
Where is the Cuban Flag?
Here it is: http://awesomewallpaper.files.wordpress.com/2011/05/cuba.jpg
Canadian?