I'm a bit embarrassed that the binoculars were such a big hit, even though they are real cheapies. It's like those cheap FRS radios that the troops are buying (I saw a captain in the 101st with a blue FRS radio on his LBE), it's stuff that every grunt should have, but the military bureaucracy hasn't figured it out yet. Food, letters, videos from home are great, but these things are tools that can be used to keep our guys alive.
I'd send FRS radios, except the troops may or may not use them, and they always risk an Article 15 if the brass decide to make a federal case of it. Troops in the field also need a quality large lockback knife, but I'd probably go to jail if I tried to send one of those now (I did manage to send one to a friend's younger brother in the Marines in the first gulf war).
Another thing that troops in the field can use are compasses. Not the $80 GI lensatic compass, or the $400 engineer's compass, but $5-$10 ones carried by backpackers. Even in the age of GPS, if things go sideways and you're all alone in bandit country, you have a bit of help on your side.
These are all "comfort tools", just like the food goodies we send are "comfort food". They're good to have, and may someday save your bacon. And you don't have to be an 11Bravo to appreciate it, and maybe even need it in a pinch.
2J, please continue your wonderful work, and I'll continue to contribute. Meanwhile, I'll be taking some of my eBay income, and shop for things I know the troops can use, and that won't get them or me in trouble.