Uzu by Colordodge Labs
Uzu is a perceptual pleasure. By touching or swiping the iPad screen, you can create a wide range of colorful confetti like patterns that explode on the screen. There are numerous settings for controlling the size, transparency and speed of the patterns. You can choose, random and continuous patterns, or stop them abruptly when holding your finger down on the surface of the iPad, and releasing it to resume. You can bring up the controls by double tapping on any corner. Here you can also choose the camera icon to take screen shots, like the ones you see below. Uzu is $1.99 in the App Store.