Fun ideas, combine fun fabric (Balis, batiks, etc) with knitting - you see, I love fabric but kinda suck at sewing:
1.) Use some of that leftover Cotlin to make small shoulder bags lined with something fun, maybe use heavyweight interface for a structural part dividing compartments?
2.) A coworker has been working on these childrens' dresses with knit tops and fabric skirts. Maybe with some very lightweight fabric, silk or rayon or even cotton, for an adult?