Purl Blocks
Cast on a multiple of 4 stitches.
Row 1 (WS): Purl.
Row 2 (RS): Knit.
Row 3: *Purl 2, knit 2; repeat from * to end.
Row 4: *Purl 2, knit 2; repeat from * to end.
Row 5: Purl.
Row 6: Knit.
Row 7: *Knit 2, purl 2; repeat from * to end.
Row 8: *Knit 2, purl 2; repeat from * to end.
Repeat rows 1-8 for desired length.