Even if you don't live on S.I., it’s worth hopping on the ferry to peruse a mix of more than 3,000 high-end and affordable costumes for petite, regular and plus-size bods. Bypass the scarily dressed teenagers posing in the windows as mannequins and head to the costume section, which takes up 70 percent of Ronald Shatilla’s 23-year-old dancewear shop. Invest in a Pirates of the Caribbean Jack Sparrow outfit ($370), consisting of a linen knee-length coat, vest, shirt, boot covers, hat, wig-attached bandana, belt and loose-fitting pants, or opt for more budget-friendly picks such as prefabricated Captain America ($65), Catwoman ($60) and Black Widow ($63) ensembles. Alternatively, you can take advantage of Performance Dancewear’s year-round stock by donning a Body Wrappers short-sleeve leotard ($19) and baggy cotton sweatpants ($33), plus Leg Avenue knitted knee-length leg warmers ($15), for a bona fide Flashdance getup. Top off your number with a chic wig ($13–$32), or complete ghoulish looks with tubes of Mehron stage makeup, such as fake blood ($4) and face paint ($4).