I am a teacher, and we love to see creative baskets! I would put sewing notions in it, even some odds and ends things that new quilters don't think of...binding clips, etc. I would also put a variety of fat quarters, some easy patterns, and a few quilting magazines.
I don't know what everyone else thinks, but I can never get enough safety pins, and an extra pin cushion would be nice. Do you know how to make them?