Hi Deb,
I'm sure you'll get lots of ideas from junkies in time.
One of the items I send are business sized Thank You cards that I order from DearAmericanHero.com.
I also order free postcards and my own thank you cards from VistaPrint.com.
The troops enjoy seeing photos of the people who they get letters from, and also pictures of anything that reminds them of home.
Book marks are nice.
I've heard some have sent a stick of wrapped gum or a fruit leather stick.
You could also send a blank card and envelope from them to write home with.
Waiting to get more ideas from others who will respond to your post.
The USS Ronald Reagans homecoming to San Diego from the Surge Deployment - April 2007. Proud Mom in law of a NAVY sailor, and a proud supporter of our men and women in uniform.