These patterns are examples of crocheted scarves that can double as sash belts.
Photo by Sandi Marshall, licensed to About.com, Inc.
This can be worn as a sash belt or as a skinny scarf. It is worked in long rows. Three different starting chains are given for various lengths.
A photo that shows the Triangles Design Scarf worn as a wide sash belt. There is a link to the free pattern on that page.