Spiro Star Afghan Motif By Helen Shrimpton - Free Crochet Pattern - (ravelry)crochet granny squares design Spiro Star - free crochet square pattern by Helen Shrimpton. Measures with worsted weight yarn and hook, with dk yarn and hook. Crochet Blocks, Granny Square Crochet Pattern, Crochet Blanket Patterns, Crochet Stitches, Free Crochet Square, Crochet Squares Afghan, Crochet Square Blanket, Crochet Blankets, Crochet Bedspread