I was a majorette also!  I started when I was 8 and twirled up until I was 15.  My high school didn't really have majorettes in the band and I was way past the rec level that I was participating in.  So I stopped twirling and continued on with my cheerleading.  (I did both during the same time periods.)  
I don't know much about scholarships, but I just wanted to respond to the thread to wish your daughter good luck.  I had lots of fun and went to lots of competitions around the USA.  I still have all my batons, knives, flags...and whatever else we twirled! And I still have all my awards displayed in my old room at my parent's house!