If you're going for an look, be it for a costume party or just as a throwback to a different era, cutting a sweatshirt is one of the easiest ways.
101 Totally Rad Halloween Costumes Inspired by the - halloween, holiday, costumes
"I'm addicted to love" girl costume
Love this take on a DIY Ghostbusters Halloween costume.
Here's an idea for a DIY an costume.