It's a limited edition ice cream, but will people be rushing out to try it? French's teamed up with ice cream maker Coolhaus to create mustard-flavored ice cream. It will only be available in Los Angeles and New York to coincide with National Mustard Day in August. It's a new twist on an old barbecue favorite. Ice cream makers are coming up with unusual flavors to pique the interests of their customers. InsideEdition.com's Mara Montalbano has more.