You should PM (send a private message) to tacogirl. She is frequent poster on this board and I'm sure can suggest some things for you to bring. Otherwise, I discourage bringing candy down, perhaps sugar-free if anything. I have really never understood why anyone would bring candy to the children but this coming from a Mom who doesn't give her child too many sweets.
Try the $1 store. You can get some cool items in bulk. I'm sure they could use them when school reopens!