Earlier this week I showed a D4P block I had whipped up for a mug rug. Missy wrote and asked if I would be willing to share a tutorial. Of course! The original Pinterest pin I stole it from is here which includes the math for different size blocks. Sew (4) 5" squares together and spiral the center seam. Use your favorite pencil to mark 2" to the side of each corner, for a total of 8 marks. Without moving the fabric, cut 4 diagonal lines from mark to mark made in the previous photo…