below is a list of many of the most common veneers used in marquetry, an example of their color, and ideas for the types of things they can represent. It's important to remember, however, that not all pieces of a specific kind of veneer will look the same in regard to color and pattern.
While the list below is a helpful resource, don't be afraid to try using different types of veneers you prefer to achieve the effect you are looking for.