Ditto Seabee's comment on baby wipee-the most priceless commodity in a no running water havin', non pork eatin', fourteen year old boy walkin' on your tablecloth, sittin' on the floor eatin' country. That and gel type hand sanitizer. We received free books, toothbrushes (in fact every toiletry imaginable) beef jerky, and Snapple until it was literally becoming a nuisance, but the thing everyone loved was the wipes.
There was a particular brand called Joey Wipes that you could actually take a bath with. Those were my personal faves. Letters are also nice. We received hundreds on Thanksgiving, and we made sure each one was read. Sometime they come with pics...
Weapons, even in SF, are streng verboten. There are enough there that you can choose whatever you like. I had a Romanian AKM. We even found a 1918 Maxim MG which the unit was allowed to take back as a war trophy.
The Martini Henrys that guys took back were probably fakes. It's amazing what folks can hammer out in the back room of a mud hut.
The two cannons I took back were definitely not fakes. Legal as they were pre 1898 and muzzle loaders. Maybe you can send over some black powder, to set up an FPLF.
So... send EOTechs and other goodis if you like, but no weapons. Personally, I found the M68 to be quite adequate, and went so far as to mount one on my AKM with radiator hose clamps under the gas tube, and a PEQ/2 to boot. I almost got my ass in a wringer over that, but that's another story...