Tiny Scalloped Crochet Edging, free pattern by Daisy Cottage Designs ~ Join your contrasting yarn in any stitch, then ch 2 and hdc in the same stitch. *Skip 2 stitches, ch hdc in the same stitch* all the way around.
Your choice of crochet edge can make or break your design. Leaving an edge unfinished is not the end of the world, but if you really want your project to soar, choosing an appropriate finishing stitch(Diy Pillows Pattern)
Crochet_Tutorial - "How to crochet a Blanket Stitch edging. Many more photos at fiberflux. Simple, but effective edging and you can add picots or other stitches after the blanket stitch is completed." Enjoy from KnittingGuru