I have been wishing for a long time for a group for one of the mosaic patterns, the one that I call the magic one as it can be changed so drastically in its appearance and often comes out beautifully in very unexpected ways. Nobody made a group, so I created one...
If you have been using this pattern and you would like to add yours here, please do so, I'm a great fan of them.

By the way, in case you hadn't noticed (like I didn't for the longest time) the pattern was created by isotope.151.