I've been busy making other knots as well. I finally finished those friendship bracelets, and when my swapmates receive them, I'll post the photos.
I love this knot stitch. Any worsted 100% cotton'll do. White for A, my own handpainted for B, 4.5mm needles & crochet hook.
CO an odd # of sts with color A (I think mine is 45)
K 1 row
Row 1: (RS) with B, K all
Row 2: K1, *P2tog and K2tog in the next 2 sts, rep from *
Row 3: with A, K all
Row 4: *P2tog and K2tog in the next 2 sts, rep from * to last st, K1
Rep these 4 rows, carrying new color loosely up the side. End with row 3, BO in A, then add a crochet border with A to beautify it even more. Yes, that's all there is to it. Now go make yourself something snazzy.
Note: P2tog and K2tog in the next 2 sts is a lot like an increase Kf&b, or knitting into the front and back of a stitch. Except in this case, you P2tog, then without dropping the sts on the left needle, you K2tog those same 2 stitches again. The stitch count never changes.