Free knitting pattern for Waffle Blanket - Ana Sancho Rumeu’s squishy afghan has a 3 stitch repeat. The border is an attached i-cord but if you can substitute a garter or seed stitch border if you want something simpler.
How To: Crochet The Diamond Stitch - Easy Tutorial
Free Knitting pattern for DPN Needle Roll - Catherine Ward's simple clever design holds double pointed needles in place with strategically placed rows of purl stitches. Be sure to check out the projects for customization ideas. Other knitters have added fabric backing or borders and different closures. On knitter adapted it for circular needles. Pictured project by laars.