So you’ve got an important event looming on Saturday and want to make a smashing entrance? Or perhaps, you just want to lounge around the house feeling Rococo, eating Macaroons, and relaxing on your chaise while your string quartet serenades you?   Here’s the essential Marie Antoinette Hair ‘how to’ you need to get that Pouf up and sailing securely: quickly and easily.   Materials needed: 1 Styrofoam Ball (Read the directions to understand what size.)   Some Seriously Cheap Hair Weave (Don’t