Here's a fun little quiz I picked up reading Stretch Mark Mama. The problem for me was that I could remember countries like Luxembourg and Leichtenstein, but heck if I could remember how to SPELL them. And you better be able to type fast too. Go for it, and shoot me a comment to let me know how you did.
And you might want to memorize this song before you go.
(YouTube video embedded. Link.)
It helped me, except I couldn't spell Kazakhstan! And the quiz didn't like "West Xylophone." Go figure.
"Algeria, Bulgaria, Cambodia, Dominica..."