Here's a diy re-purposing project that was super easy to accomplish and turned out particularly well:
Sailor knot headband step-by-step instructions I used. The web is plastered with tutorials for various forms of knotted headbands. I recommend it if it speaks to your style; give it a try! Minimal materials that can be readily found around the home + minimal effort! This is a fantastic introduction to re-purposing for those that are diy novices. Recycle, reuse, re-purpose!