I went to a tacky sweater party this weekend sans tacky sweater, so I knew I had to do something big to compensate. Out came the ever-useful gold pants and gold blazer, and with the addition of an art deco necklace worn as a headband, I was a smashing Christmas tree topper.
You can use any necklace as a headband in a cheap, temporary way. All you have to do is cut a thin elastic, tie each end of the elastic to each end of the clasp, and voila! Headband!
This works better with shorter necklaces so the elastic is tighter, but you could experiment with looping and doubling over long necklaces.
So easy!