Remember your mad friendship bracelet skills from way back in grade school? Time to bring it back for this styled up DIY! Add a bit of uniqueness and color to your plain, boring headphones. All you need is embroidery floss from your local craft store. So soooo many colors to pick from, you'll probably stand in the aisle for a good 15 minutes just trying to pick. You can use as many or as little as you'd like. Also, good news, it's cheap! You can get 2 for under a dollar.
This wrapped style is just a series of the same knot, pretty simple! Here's a good detailed tutorial. Once you get the hang of it (aka: remember your master craft from the old days), it's done in no time. Plain cord no more.