Can the prehensile hair hex use a shield? I've seen people use it on these boards as extra hand (sometimes hands plural), holding wands, rods, etc. Can it defend you with a shield? The hex specifically states that is cannot use a weapon.
What is the limit to the amount of things your hair can hold? Encumbrance as defined by your INT? (note that the hex states you use your INT as the STR for the hair, and weight on the hair doesn't effect the Witch.)
Also, can your prehensile hair hold objects (say a wand) while attacking (it has the ability to make natural attacks)? Given the initial question, can it hold a shield and attack?