Help For A Sweet 16

I`m thinking summer. I`m having a girlie party, with 14 giirls. So far i`ve nailed it to facials, make-overs, fruity shakes, cake with a pic, invitations with a flower,. I`m really not making anyone wear an outfit, perticularly but they r going to wear flowers in their hair. I need more ideas, more activity, my birthday`s on march so please e-mail me quick. Srry if i`m mumbling off.