Former Denver Mayor Wellington Webb has been nominated to be a public delegate to the United Nations General Assembly. It isn't a traditional ambassordorship, but we hear that life is quite civilized in New York City, where the UN meets, despite the fact that rents are way down there. So, the hardships of foreign service in the Third World can be avoided.
Also, notably, since this Presidential nomination would traditionally have to be cleared by Secretary of State Hillary Clinton, Webb has shown that he was able to make it through the hard fought 2008 Presidential primary without long to harm to his relationship with either of the contenders for the Democratic nomination.