This is an easy crochet pattern that works up quickly using treble crochet stitches, worsted weight yarn and a size J crochet hook. It requires only ten short rows of stitching. Then you add the simple crochet shells around the border to create a scalloped edge. Simple, beautiful, and fun to work up in a single color or an array of hues.

Scalloped Edge Crochet Placemats from Engineered Crochet