SineWave

SineWave is a tool for creating visuals in the form of videos or images. (you can't export anything so just screen record or screenshot (best method guarantee).
The brush moves around the center in a sine wave motion, controlled by parameters on sliders you control. Read the Instructions on the Info panel.

Mess around for a while to get an organic starting point for inspiration or silhouette. Paint the background green, set up the parameters and let it run for a cool green screen effect.  

Enable draw mode and go to town!

Good for making computer sleep screen mock ups.