I am using recycled shirt fabric to make these anvil blocks. I tend to sew the hsts for 3 blocks at a time as a quick sit at the machine. I trim and press them in the evening while watching tv. It is easy sewing the pieces together the next day. I am using a hunk of muslin that I want to leave the stash. Although, there is something lovely about muslin. It is just a simple fabric, but, it behaves so well. It is much like the second or middle child.