Easy Goes It pattern by Finicky Creations
This pattern was specifically written for the 400 yard skeins, so you can feel confident about not running out of yarn with the smaller skeins. It’s easy to customize for more yardage by simply adding to any section. I would just continue knitting the lace at the end with my extra yarn. A fairly simple pattern with a nice slipped stitch edge. Sections broken up just enough to keep it from being too boring, but still good TV knitting.