I can see these blocks as either a table runner or a wall hanging. I would add sashing between each of the 4, in a row. Then I'd frame the 4 with a border of the same sashing. Layer them up with backing and batting for quilting, then add binding. That fabric is thin but it is very sturdy. I have dishtowels made of it from 1964 that are still going strong with the embroidery still bright and intact. I can't begin to imagine how many washings and dryings they have been thru.