This is the back of the disappearing nine patch variation with prairie points border quilt made using fabric scraps.

The big blocks are inspired on this quilt though I used my own measurements.

Measurements for top and back of quilt

Finished top: 52 1/4 x 67 1/4 inches
Finished back: 57 1/4 x 70 inches

The squares in the cube blocks are 3 x 3 inches and the sashing is 1 x 1 inch before stitching.

Cut the rest of the pieces as per picture below. Note: The 2 1/2 inch strips between the alternating patterns are 70 inches long.

The cube blocks are placed in an asymmetrical way as per picture below.

Closeup of centre

The sides of the back are 11 inches wide before stitching. The pieces are made of alternating scraps of fabric in different widths (1inch to 2 1/2 inches each) and lengths up to 11 inches in total.