This garment is worked side to side - all in one piece. Add a few rows of novelty to the fiber to add to the interest. Just keep track of how many rows are added, and add them to the other side - in different places.  The pattern is worked using garter stitch, but your garment could be worked in the stitch of your choice. Work up your gauge and use your measurements. It is finished by knitting an I-cord to the edges.

This pattern is worked from a schematic and can be adapted to crochet.