Pirates might sound like kids' stuff, but they're a fun costume idea for both teen girls and boys. Eye patches and the tri-cornered hat are must-haves for this ensemble. Teens may encounter trouble on the high seas if they try to put the costume together out of their closets; in that case, a quick treasure hunt should reveal a variety of pirate costumes at party supply stores and other retail outlets.
To save some coin, teens can wear horizontally striped T-shirts (preferably red and white), black pants or a skirt and black boots. Tie a sash around the waist and tuck a plastic sword into it for truly swashbuckling effect.