Here are some instructions I typed up for my friends a few months back. This uses material that frays (corduroy, denim, flannel, etc). The front of this particular quilt was all corduroy, the back flannel (see pic below). Rag Quilt
I used 121 squares. 11 squares by 11 squares. Its throw size, though I wish I would have made it a little longer, like maybe 11 squares by 15 squares so it could totally cover me when I'm snoozing on the couch.
I cut each square 8" by 8"
So I cut:
121 squares of corduroy 8" x 8"
121 squares of flannel 8" x 8"
121 squares of batting 6" x 6" (batting is cut smaller, because you don't want batting in the fringe)
Sandwich pieces together to make a block. So from bottom to top - flannel right side down, batting centered on top (which will leave an inch around the batting), corduroy right side up.
Stitch each block sandwich. You can stitch diagonally corner to corner, or horizontal or vertical lines, or a design. I just stitched 3 lines on each sandwich, in the grooves of the corduroy. I decided I didn't want the stitch to be a focus, because I was going to alternate the direction of the corduroy, & I wanted that, & the colors, to be the pile of flesh.
After I had the blocks sewn, I laid out the squares & planned how I wanted the quilt to look.
Starting with the top horizontal row, start sewing blocks together, with a one inch seam allowance. Blocks are sewn with backside (flannel) to backside (flannel) so that when it is opened up & is flat, the seams show on the front side of the quilt.
Stitch rows together in the same manner, with the seams showing on the front side of the quilt.
Sew a one inch seam around entire outside edge of quilt.
Carefully clip all seams at 1/4 inch spacing. Clip down to about 1/8 to 1/4 inch away from the stitching. If you cut through your stitching, go back later & stitch over your mistake.
Once all seams are clipped, machine wash & dry the quilt. I did mine a couple times. Clear your dryer's lint screen every couple minutes, because it fills up fast!
Any fabric that will ravel will work.