R.R.
Just accept the clothing as gifts, you don't owe them a thing. I know you feel the need to reciprocate, but there's no need to. We should all help wherever and whenever we can, and someday you'll have an opportunity to help someone out.
If you are crafty you could make them something for their homes, a wreath or plaque, or make some cookies or bread, or a plate of fudge, and a nice handmade card for each of them, I'm sure they would love it!