Abstract: The marking system includes one or more ink compositions and a color-change agent composition. The ink composition applied to a substrate such that it is a first color, but when a color-change agent is applied, one or more secondary colors appear. The ink compositions each have a respective ink color and include a respective: at least one first dye composition having a respective first color and at least one second dye composition having a respective second color. The first dye composition can react with the color-change agent composition. When the color-change agent composition contacts the ink composition, each respective first dye composition reacts with the color-change agent composition, 10 thereby producing each respective second color. Each respective first color is different from each respective second color, and each respective second color is different from each respective ink color.

Abstract: Embodiments herein disclose a composition including reflective particles and a kit that includes the composition. In embodiments, the composition includes a synthetic polymer, modeling compound, and reflective particles. In some embodiments, the kit includes the composition and a surface or object to which the composition may be applied. Embodiments herein further disclose a crush-resistant container for storage of the composition.