Conventions are hot, no matter what season, and you will be inside in close proximity with people, so consider the fabrics and accessories of the costume to portray your character. Saloon Sweetheart Halloween Costume Dress – Wild Old West World Madam Cosplay. A higher popular cosplay website, EZCosplay is personally one of my favorites! The cosplay community is generally supportive on the Internet, and there are communities dedicated to both cosplay and Comic-Con.