Connect your grannies at the corners and add an edge (works in the other direction too!). I have got to try this one!!
My #crochetmoodblanket2014 finished on 28th December last year.
Mitered crochet squares. More
Crochet Mitered Puff Square Free Pattern-#Crochet Mitered Granny Square Blanket Free Patterns
Ravelry: Project Gallery for Mandala Madness pattern by Helen Shrimpton
Ravelry: ccdoug's Sophie's Universe CAL - Christmas Colors
Vintage afghan, crocheted throw, circle pattern, for inspiration, no pattern
Colorful Hat - Free Pattern