After reading your post I placed a stack of boxes on top of each other and then increased the mass eventually the box fell through the static floor. I was hoping you were describing an effect that would draw other objects to it as its mass created its own gravity.
I did create a centerfuge using DP somewhat as you described but the only effect i noticed is that after the the main bowl reved up to a certain level the contents (lots of spheres) would pass through the wall
PIV 2.8 MZ 512 Mem
FX 5600 256 mem