Abstract: A kit for decorating a car. There is: a color-changing film, removably coupleable to a surface of a vehicle, and configured to change color based on sun exposure; an adhesive, disposed substantially along an underside of the film, and configured to adhere the film to the surface of the vehicle; and a stencil, configured to stencil shapes to cut out of the color-changing film. There is a cutting device, configured to cut-out shapes from the color-changing film. The color-changing film has a pre-cut shape. The adhesive is a pressure sensitive adhesive.