markers (especially the washable ones), crayons, pencils
construction paper is a big deal because it's difficult to come by on the island
library books get lots of use & they tape them when they are damaged and keep using them, so the wide clear packing tape is always helpful
any type of small toys that can be used as prizes/rewards for projects and reading contests
the library has a laminating machine and the laminating sheets are also very much appreciated
something that takes very little room to pack is printer cartridges - these are very expensive to obtain there so are greatly appreciated. PM me if you'd like more info on sizes, etc.