My favorite commercial is that of South African Airways. Their slogan is "Fly the South African Dream," and their commercial shows many different, beautiful scenes of the Republic of South Africa. Here's what the narrator says:

Because here, God's table is always set,
And a leopard doesn't change its spots.

Because the streets are our malls
And the trees our temples.

Because, just once, you need to say,
"Not another beautiful day in Africa."

Because we speak 11 tongues,
Yet we fly one flag.