You might consider some of the neat fabrics that are on the market right now that use children's books. Two that come to mind are Brown Bear, Brown Bear, What do you See? and The Very Hungrey Caterpillar. They would be neat wall hangings if the teacher wanted to hand them in her classroom.
p.s.---that is sooooo thoughtful of you. Having taught Sp. Ed. PreK for years (and currently volunteerinng in a Kindergarten), no one realizes just how hard these teachers work.....