As you prepare for costumed children to ask your preference in offering them a trick OR a treat this weekend, Myrtle Beach-area restaurants say why choose? These five local favorites serve up playful cuisine that combine delicious treats with plenty of fun tricks. The Chemist This downtown restaurant is best known for its quirky cuisine, including a Mango Coconut Panna Cotta that looks like breakfast but tastes oh so sweet. With a list of dishes and drinks that incorporate liquid nitrogen, among many others, simply put, you have to try The…