It could just be GIRL SCOUT COOKIES! Not only are they tasty as we all know, but there is something especially "American" and therefore sentimental, about them! Any cookie with chocolate might possibly win you a friend for life! Now's the time to order! It's cold there now -- mailing chocolate is OK.
If you missed sending cards for Mardi Gras and Valentines Day, don't forget St. Pat's, or just about any other excuse! Some people send a card a week which would be really fun and supportive, but every couple of weeks is very nice if you can. A month is a VERY long time in Iraq!