So I come from the Droid world and was using a photography app called Vignette (free demo). It had a setting you could choose to use an effect BEFORE you shoot the picture. You could also set this to "random" of the dozens of effects they had available. So you could take the same picture 18 times and they would all look completely different. I loved this app so much and it's not available for the iPhone. Does anyone know of a camera app that has this setting?