The Ocean stitch creates a great textured pattern. In this Tunisian stitch, the alternating shells look almost like an alligator texture, or like the waves on the ocean. This stitch would work great on a hat or a bag.
The Tire Tread stitch is a textured, solid pattern. It has a firm but loopy texture, and is formed using the Tunisian Crochet technique. It is ideal for projects where you want a nice firm fabric, such as washcloths or coats.