Abstract: A paintball includes first and second half shell portions, each with a recess that can hold liquid containing dyes or other marking pigments. The liquid in the second half shell portion is relatively viscous, or becomes so after being placed in the second shell portion. The second shell portion can then be inverted and the liquid will stay within it. Neither shell portion includes a barrier to hold the liquids in place. The second half shell portion can then be placed on and joined with the first half shell portion to form a paintball.