I love this knit stitch. Cast on multiples of 4. Knit all right side (odd) rows. Row 2 and 4: p1k3 across. Row 6 and 8: k2, *p1k3 across to end, end with p1k1. Repeat 8 rows for pattern. Or for Row 6 and 8, start with a k1 and end with p1k2.
Old book spines glued to a box. Great idea for a hidden bookshelf storage.