rag quilt
if using flannels, cut 2 blocks and put them back to back, clip all the edges 1/2 apart about 1 inch deep.
repeat this for all your blocks, sew them together with the seams all one side.
sew around the edges to hold the blocks together back to back.
with fleese, you don't have to do to layers, just one
with denim, do the same as flannel.
no ironing needed, when done you wash it and the flannel or denim will fray after drying. fleese will not fray any at all.