The Aquacolor, Lyras most versatile product, is a rich, high lightfast bees wax crayon, that works on most non porous surfaces. You can use it dry and add water with a brush, or dip the brush in water and touch the color to water color on most papers. If you want to create water color pallets take wax paper and draw circles of color on it, fold it over and hand them out as a watercolor pallet. You can create mono prints or use on your skin, they are safe and are AP non toxic. Available in metal sets of 12, 24, and 48. The wax-o-glass , a similar product, is marketed to use on glass for decoration, and is sold in a cardboard box of 10 for less.