I teach classes on color tinting with crayons. The most important thing is choosing a fabric (to color on) that has a high thread count. I use a light box to transfer the pattern onto the fabric using a micron or pigma pen. You must heat set this. Then dig out the crayons and have fun. Get a big box of crayons so there will be lots of tinting selections. Some people like to cover the whole design with white crayon first. They feel that it fills in all the "holes" in the fabric so the color is stronger. I like to gather up 6 - 10 crayons of the same color family and start with the lightest and move through to the darkest--shading as I go. There are a couple hints I will pass on. Check to make sure that the surface you are coloring on is smooth and there aren't any stray threads on the back--both will show and can't be removed. It is always smart to start at the top of the design and color downward--don't drag your hand through the color already applied--it will smear!! To negate that, I often color one section and then heat set it and move on to the next section. Heat set by applying a paper towel on the design to absorb the color. I usually use two towels to assure that all the color has lifted. It is possible to go back and tint again and again--just heat set each time. I recommend washing in cold water and with mild soap. If you decide to embroider, be sure to back the design with muslin (baste around the design) or use pellon SF 101. Both will hide the threads. I give all students the same design and am always amazed at how different each one turns out--from lightly tinted to very darkly tinted. It's really fun. Give it a try.