More ideas from Silje
Keep your headphones from tangling AND beautify them. Better tutorial for the Chinese staircase knot here:   http://www.instructables.com/id/Chinese-Staircase-Friendship-Bracelet/?ALLSTEPS

Simply use the basic knot you’d use to make friendship bracelets to wrap the main cord and each of the individual earbud cords. To make them even more tangle-proof, wrap plastic coated twist ties inside with the cord.

Cover rocks with mirrors and they look like  melted disco balls.

"Cover rocks with mirrors and they look like melted disco balls." I don't think these are rocks but if you could find a "melted" looking rock you could cover it it pieces of mirror or CD's to create a "Melted Disco Ball".