Warning About Flammable Halloween Costumes By Liz Crenshaw and Katie Roberts • Published October 28, 2013 • Updated on October 28, 2013 at 8:37 pm Liz Crenshaw, News4’s consumer reporter, shows that some Halloween costumes and accessories are dangerously flammable. Here’s how you can keep your family safe. For more safety tips, visit the Consumer Product Safety Commission's website.