I like to work in color when knitting and early on found a good, free slip-stitch pattern that forms a brick design. The pattern was originally written for a dish cloth but was easy to convert into a soft, sweet baby blanket .
More recently, I used the same pattern for a scarf for the Arkansas group of Special Olympics. They specify the use of Red Heart yarn in colors of red, grey, black and white and I designed a scarf using these colors and incorporating the brick pattern.
This group asks for scarves and headbands and I included two headbands with Fair Isle patterns.
The free slip-stitch pattern is available at Ravelry.com
Knit Freedom offers a good class on slip-stitch/mosaic knitting for a fee: http://knitfreedom.com/classes/double-knitting