I modelled that ages ago in an early version of blender then swirled (?) a bit in gimp.
Use it the way you like, just do not claim you made it. ;-)
In case you are interested I would like to also note that "M-particles" are described in the course of Su Jok Therapy. (read more on the method at http://www.sujok.ru and as I found out the 2nd link in google, http://www.calcuttayellowpages.com/adver/103452m.html , gives you a short info on the subject of my wallpaper).