Muggle Shakes will open in March in Colleyville at 5615 Colleyville Blvd., Ste. 340, Colleyville. The business offers frozen yogurt with a twist, served in mugs and with sweet toppings, such as drizzle, decorated marshmallows, Nutella, Rice Krispie treats and more. In addition to mugs, the treats can also be served in a bowl or in a cone. www.muggleshakes.org