I did a wool wallhanging about 50 X 50 years ago. It was from coat remnants that my aunt gave me. They were in bright blue, magenta, green and black tweed. Since the colours suggested an Amish look I did the large square in a square pattern. It still remains one of my favourites. I used 1/2 inch seams that I pressed open and I hand quilted it with larger stitches. It has been hanging as a piece of art for years and I vacuum it for cleaning. Since the colours are darker and it is wool I will not chance washing it.