I know this is a quilt and NOT crochet but it is crochet inspiration. I think a granny square afghan made like this would be really cool and actually pretty easy to do. crochet,Crochet of 13 boards),patchwo
The quilt is constructed of pieced triangles cut from a jelly roll. The other two quilts included in the pattern are also quick jelly roll strip quilts. “Weave” (left) and “Rainbow Square” (right) are just as lovely as “Prism”.