You could give out gift cards. Almost every grocery store sells them and there are reasonably-healthy fast food options (Subway) that have them as well. It's pr

You could give out gift cards. Almost every grocery store sells them and there are reasonably-healthy fast food options (Subway) that have them as well. It's pretty easy to carry a bunch around in a wallet or purse. Pick whatever denomination you'd normally give in cash. It doesn't guarantee that it won't be traded for cash to buy drugs and alcohol, but it's certainly more of a hassle to do that than to spend it on food.