The backing I finally chose is simple a turquoise sheet from Ikea, the binding is called Itty Bitty RicRac by Lakehouse Designs. I pieced it all and quilted it all with Aurifil thread, using a rainbow variegated thread on the back, which I love. The quilting is an all-over grid done on my machine, diamond-y like the blocks.
Quilt Stats: Dimensions: 59" by 71"
Fabrics: scrap strings 2" and less, centre strips are made with Habitat Dandelions by Michelle D'Amore for Bernatex. Binding is Itty Bitty Ric Rac by LakeHouse Designs. Backing, Ikea sheet.
Batting: Warm & Natural
Thread: Aurifil 50wt for piecing and quilting
Completed August 2013