You'll need: •A camera with a large aperture lens •Cardstock, or other thick paper •Scissors •Tape 1. Cut out a circle the size of your lens. 2. Cut out your desired shape on the middle of the circle, don't make it too big. 3. Tape it to your lens. 4. Set your camera to it's lowest aperture value (mine was set at 1.8), make sure the lights aren't in focus, and take your picture!
This App is awesome. If your camera is ever lost/stolen, you can download a photo you have taken (with the embedded serial number) and it will search for matching serial numbers posted on the internet, so you can see if anyone is using your camera and posting images from it.