1. iPhone or iPad
2. The App PhotoBomber
3. Light Source
4. Dark room

You have to use a weak light source as using a bright light source will flare the camera and will ruin your artwork.. Also to note the app PhotoBomber is free!

Step 1: The Painting Itself!

To set up the room turn of all the lights and set the app up by turning the shutter speed to B so you can manually choose the timing of your picture. Next slowly drag your light across the front of the camera in to your desired pattern and pause the shutter on screen. You should take into note that this process can take along time to master and it took me at least half an hour to perfect my pattern but even then.. At the least lets just say it's hard! For examples of my failure just look at the photos in this instructable to get the scale of how hard this is.