Here is the order in Griffith v. Caney Valley Public Schools (N.D. Okla.):
Prior materials here.
In which the student is denied the right to wear an eagle feather on her graduation cap. Her graduation from Caney Valley Public Schools, which is just north of Tulsa, is Thursday, May 21, 2015.
The School demonstrated that the graduation ceremony is a formal ceremony and that the unity of the graduating class as a whole is fostered by the uniformity of the caps which are the most prominently visible part of the graduation regalia viewed by the audience to the graduation. Prohibiting decoration of any graduation cap by any student for any purpose serves these legitimate interests. Based on the application of these established principles the undersigned finds that Plaintiff has not demonstrated a substantial likelihood of success on her First Amendment Free Exercise of Religion claim.