Joan Ford, designer of this quilt, has teamed with Quiltsmart to make interfacings for a couple of her patterns, this being one of them. If you scroll down in the link I previously referenced, you will see a mug mat made using the mini scrap grid, it's adorable. Here's another link, this time to Hummingbird Highway, Joan's website for books, patterns, notions, etc. There's a picture of the Quiltsmart grid with fabric laid out as well as several of the mug mats.
http://hummingbird-highway.com/patte...-2-panel-pack/