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I made an Android screensaver based on this idea a while ago so if you have a tablet lying around then you can have it on your coffee table :)
I made a (free) daydream/screensaver for Android based on this idea a while ago, if anyone wants the same effect on their desk. It shows the time every 30 seconds and does a few different pattern animations in between. It also reacts to touch and you can pick your own colours.