A play on quantum levitation. Two drops of colored oil inside a drop of water. Using two different force field setups, oil is forced to mix with the water.
A small experiment with fill object emitters, trying to create fluids close together without gaps in between. Some things learned: fluids contract and take up smaller volume than the object they fill in Realflow, and that produces the gaps; this can be fixed in the meshing phase, where you can almost perfectly achieve no gaps are made. The way to achieve the effect is using particles from other fluids as a subtractive field. That way, you get the holes that the smaller fluids(oil in this case) fit almost without a gap...