Project Write2Them
For $25 you can have your Cadet recieve mail daily while at Maxwell AFB. Previous posts have said they didn't think Write2Them.org covered the Field Training for AFROTC, but I emailed them and they said that YES they provide this service for all military training or deployment periods!!
And this includes up to 30 friends!!! So your cadet can recieve up to 30 letters a day for this low price of $25!! And the best part is that it all works through email! So you can scan news clippings, pictures, cards and attach them to the email and they will print it up for you!