David and Wendy Mills are joining the Texas Department of Transportation for a new "Click It or Ticket" movement to stress the importance of buckling up. The effort includes a display made up of nearly 1, "ghost shoes" — white footwear in every style, shape and size set up in a series of perfect rows. A pop of color can be spotted amid the sea of white sneakers and boots — a bright pink pair of shoes the Mills placed to honor their year-old daughter. Kailee Mills was driving with three friends to a Halloween party in October when she unbuckled her seat belt to take a photo. Mere seconds later, the teen was killed in a car wreck just yards from her home.