I'm not sure if this is US only, but Dairy Queen is having a free cone promotion on Monday, March 20, 2017. You will be able to get one free, small, vanilla, soft serve cone during all hours of operation at participating locations. Check with your local store for more details. Dairy Queen offers free ice cream in hopes that you will make a donation toward the Children's Miracle Network. Donations are not required but are appreciated. They have raised millions of dollars for the Network over the years via this campaign. Will you be visiting Dairy Queen on free cone day?