Here's part 2 of the Attached I-Cord Corner Tutorial (here's part 1). I hope you'll find it useful in your next blanket project! My apologies; these pictures were taken during a particularly gloomy week, so indoor—tungsten—lighting.
The idea behind my attached i-cord corner method came, not surprisingly, from quilting. Most quilts have attached bindings whose corners are mitered. It was seeing this miter that inspired me to create a better attached i-cord corner.