Shop Fierce Costumes' Teen Girl's Decades Department. Our parents had some cool clothes! No matter what era you were born in, Fierce Costumes has something for you to relive the old days! Go way back and separate yourself from the other girls in our unique, cute and classy 20's Flapper costume! The 60's was a crazy time and we've got plenty of different Hippie costumes for your particular taste. Or if you want some good-old-fashioned fun, try our cool 1950's Diner Waitress and 50's Pink Poodle Skirt costumes as well. Take a trip back in time withour Decade Costumes!