I finished all the seaming of pieces last night! It went by much more quickly than I thought it would. At lunch today, I went to buy a zipper and, of course, the color selection was fairly limited. I forgot to measure what size zipper I would need, so I bought both 16" and 18" ones in natural and yellow. The yellow would be a nice contrast to the grass green, but it might be just a little too loud. I'll decide tonight and have photos of the FO posted in a few days!