MS, I don't know where you have been hiding, but it never has been the custom of the government to provide certian "pleasure" items to the troops. In Viet Nam we cryed for foot and body powder, the rash and skin problems caused a lot of discomfort. ( don't an Army move on it's feet? Why didn't they make foot powder available to all of us?)
Snack food items were a hot item, and still are. M&Ms go over very well, wet wipes for those times you can't get a shower, extra socks, and kits for cleaning glasses. As ssuggested below, if you truly want to get involved I suggest you contact a military installation and ask what they want/need. If you can't reach one, p mail me and I will put you in contact with someone who can help.
The ole retired sarge......................