My editor and Vogue's digital style director Leah Faye Cooper is a fan of the trend, though she admits to worrying that it would read "silly" at first. But the piece de resistance of Lawrence's outfit was her purse: the Ralph Lauren Polo ID bag-a half-moon shaped shoulder bag the color of banana Laffy Taffy. and beauty. "You've got to be careful with platforms as they can make you look like...