I am fairly certain that this is the same nationally - but it could just be at JU - we don't let our New Members wear letter shirts. We define letter shirts as anything in which the letters are stitched on or where they are the main focus of the clothing. For example, our bid day shirts are ok b/c they just have the three deltas in the upper pocket area. Also, nothing that refers to sisters unless it is "I can't wait to be your sister" etc. At my school, bigs usually give their littles a lavalier, and then at initiation their first stitched letters. I'm sure this isn't nationwide, though perhaps lavaliers are popular big/little gifts. Hope this help some. Congrats to her, and to you for being so supportive