Progress on String Blocks

I have really been having a lot of fun working on these string blocks. Here is the stack, all 192 of them. They are 4.5" squares. The strings are sewn on a muslin base.

Since the blocks are rather on the thick side, I need to pin them. I love these ultrafine pins from Fon's and Porter. They have glass heads, glide through the fabric and usually don't cause a broken needle, although I have had my share of mishaps.
I also use a walking foot due to the thickness of the blocks so that they stay nice and even. I sew rather slowly on these, and go right over the pins.

This is the setting I am playing with. It is hard to tell from the photo, but the sashing is a pale yellow. I like it so far, but need to put another row together before I make a final decision. The plan right now is for a layout 6 blocks x 8 blocks.
I have one more seam to sew and then the Double Delight will be put together also. I am still trying to decide on borders.

Donna