I found it between the roots of an old oak tree. My father told me there live dwarfs when I was young.
It's fascinating what Mandelbulb is able to sometimes.
If you're interested in the params send me a note.
edit : I'm proud it is one of the 25 winners of the Benoit Mandelbrot Fractal Art Contest 2011! [link]
edit: And now a DD! Many thanks to SaTaNiA!