Blender Particle Fluid Dynamic FLOATING OBJECTS

I saw this as a feature of professional fluid simulation programs, but I wanted to do it in Blender. So I played around a bit and this is what I have come up with. Its possible to make any object floating on the particle fluid system.

You can find the tutorial here:

http://maxprint3d.blogspot.nl/2012/04/creating-floating-objects-using-blender.html ... https://www.youtube.com/watch?v=Lk-iPI6KwZc