Trails is an experiment I created to wrap my head around Cinder for desktop and mobile development. It is essentially a particle emitter that builds geometry between the emitted points.
Emit trails by dragging your pointer or finger around the stage. The desktop version also includes three key commands: The "f" key toggles fullscreen mode, the "s" key saves an image to the user's home directory and the spacebar clears the screen.
You can download a Mac version of Trails below. An iOS version is coming soon.
Source code is available on GitHub: https://github.com/scottgarner/Trails