Ravelry: Crochet for Knitters - Granny Ripple Blanket pattern by Staci Perry
Crochet stitch diagram; shell pattern. This would be nice for a scarf.
Lacy V-Stitch Ripple, free pattern both written & diagram, from Kara of Petals to Picots.
Rainbow Lightning Ripple Afghan diagram Breaking Amish crochet pattern by Mary (the Mom)