Colored pencils are a mixture of wax, pigment, fillers and additives. The popular Prismacolor variety by Berol (Sanford) are rich in color density and come in a wide variety of colors. They behave much like dense wax crayons when used heavily and like pencils when used for general drawing or sketching. Prismacolor pencils blend easily and you can glaze colors over top of each other.

Some Professional Artist's colored pencils are lightfast rated in grades I and II according to ASTM(American Society for Testing and Materials)D6901 Standard Specification for Artists’ Colored Pencils.

Created for drawing on lithographic stones or plates, grease-laden lithographic crayons (sticks) or pencils (paper-wrapped) can create rich blacks and velvety darks grays on smooth paper. FYI: The warmth of your hand will soften the lithographic crayon and make it sticky.

Traditional (Crayola style) wax crayons are excellent for no-holds-barred scribblefests on a pad of manila paper or a stack of printer paper. Best displayed with magnets on enameled appliances.

Harder formulated wax based sticks like those by Prismacolor can give bold broad strokes. They are essentially large sticks of colored pencil leads.

Watercolor pencils require a cross-over painting technique that is not covered here but go for it if that's what you have on hand. After drawing you then paint with clear water and the colors dissolve into watercolors. You can draw over wet areas for bolder lines. Use heavier watercolor paper to draw on, at least #140 weight if you will be using a lot of water. Check for lightfastness before choosing a set.

Oil pastels are dense soft waxy paint sticks used primarily for loose color sketching and drawing. They are a cross between encaustic (wax paint) and crayons, with oil and other conditioners in their formula. Oil pastels can be blended easily using a brush and mineral spirits or turpentine. Oil pastels should not be mixed with other media like oil paint, encaustic or acrylic. Professional grades are rated for lightfastness.