Here is a random experiment I did. I figure, it's not worth an instructable so I decided it's so easy and short why not post it here? All it is is a few steps and boom- you're done!
So here you are just follow the pictures and watch the 5 or so second video and then go do it yourself. The video: http://s707.photobucket.com/albums/ww76/shadowninja31/?action=view¤t=100_4385.flv