Didn't think I was going to finish this as the weather was much better than forecast. That meant lots of time in the garden. But I did indeed finish it:
The fabric is a mixture of plant dyed raw silk, gauze and cotton; linen, more silk scraps, wool from a wedding dress, trim from the edge of a wool blanket, and bits of scraps from here and there. One square was a gift. The bottom is salvaged from a pair of jeans my grandmother gave me to recycle.
Woven squares work wonderfully well for this type of project.