I am so excited that we're getting a chance to warm the heads, hands, and feet of "our" kids in Afghanistan. A couple of months ago I found this free crochet pattern for mittens, and I thought it looked pretty good. I am still at the point in crocheting where flat things seems much more doable, so I sent it to an expert crocheter I know (hi, Marcie!). By the very next day she had made a mitten and declared that the pattern is, indeed, as good as it looked. Worsted weight, several sizes - here you go!
You can find the mitten pattern here.
(link repaired February 24, 2013)
The smallest size is for preschoolers, so not acceptable for this campaign, but the others are just right. (Oh -- and don't add the star. Too reminiscent of the American flag, and if the kid ran across the wrong person, that could cause trouble. I am deeply grateful to live here, don't get me wrong, but I have no wish to put any kid in danger.)