I made this houndstooth scarf for my mother so she could show her Crimson Tide pride at work before game day.  I adapted this houndstooth scarf from a pattern for a dog's scarf.  Basically I increased the width and length by adding more stitches and rows.  The pattern itself is very simple.  Make a chain the length that you would like your scarf to be.  In the second chain stitch from the hook single crochet.  In the next chain stitch double crochet.  Continue this pattern until you reach the end of your chain.  Tie off.  Attach your second color of choice to the same side you began your first row of alternating single and double crochets.  For the remaining rows alternate your pattern.  So in every double crochet you will make a single crochet and in every single crochet you will make a double crochet. Always start your new row from the same side of the scarf and continue alternating colors until you have achieved the width you desire.