Ahoy, Rebecca!  You are going to love the Pirates League! Your hairbrush is needed in case they have to move your hair for any reason.  For example, they may have to brush bangs out of the way to apply makeup, or they may need help positioning your hair under your new pirate bandana. Since you are bringing your own, you will not be sharing a brush with other Guests.  As for make-up, I would at least wear your regular foundation.  However, if you want to wear what you normally apply, go ahead; they will work around it.  I have always just worn my daily make-up, and the Cast Members use it as a base.  Happy planning and have a Magical vacation!