I made a total of five of these, each using Lion Brand Homespun Yarns (see below for specific colors).
These yarns hide mistakes very easily and you can mix up a couple of the lengths to make a pretty thick scarf.

Each is about 1 inch wide and vary in length.

Materials used:
My fingers
Lion Brand Homespun Yarn Williamsburg 321
Lion Brand Homespun Yarn Deco 309
Lion Brand Homespun Yarn Baroque 322

Sites for Finger Knitting Instructions:

Kids Can Make It - Finger Knitting Instructions
Camp A Roo - Finger Knitting Instructions (Scroll Down)