Place to donate airline miles?

[DC Chick]

I've donated airline miles to Fisher House (http://www.fisherhouse.org/) when a company was matching donations a few years back. I've got miles to donate again (I used to fly Midwest Airlines a lot, but the people I used to visit have moved). Does anyone know of a charity accepting airline miles that has a matching program? I've got more than half of a trip's worth of miles, if I can get a matching donation that's a free ticket for a soldier, or family member of a soldier, etc.
It doesn't have to be a military charity, but I can't really think of others that would need airline miles.