Kaleidoscope is simple and nice application, which generates thousands of unique images.

It is good for meditation or relaxation. Also you can create unique wallpapers for your device.

Kaleidoscope 2 is upgraded version of famous Kaleidoscope application - now even more images with improved dynamics algorithm.

Google Play link:

[Free] Kaleidoscope 2 - wallpaper generator-kaleido-jpg_zps14cbf2e0.jpg

System requirements: Android 2.2 + adobe Air plugin