This triangular shawl design is great for mindless knitting, or if you have a limited amount of yarn. Every row is the same and you can easily stop knitting when 1) it is big enough or 2) you run out of yarn.
Premier Yarns Sweet Roll has 3 colors in each ball. In this design, the colors form broad stripes that get narrower as you work your way down to the lower edge of the shawl.

Also available here: http://www.acmoore.com/projects/projects-yarn-and-needlec...