Below are a few of the stain finishes available. I use the Minwax family of products, and for images of the complete selection, click the link below. Final product may vary from displayed images due to may factors, including screen resolution, variations in density and color tone of the wood, or even production batch of the stain itself.
http://www.minwax.com/wood-products/stains-color-guide/

Pickled Oak

Colonial Maple

Gunstock

English Chestnut

Red Mahogany

Jacobean

Red Oak