This video shows one way of achieving an ink splatter effect with mosplines. There are probably many others. In the tutorial I only show the core technique with very rough settings. So experimenting and refining is highly recommended :-)
Note: You can take as many splines as you like under one metaball object, you are not restricted to one set of mosplines. So go wild!
You can also make diagonal cuts and fold them, the underlying technique stays the same.
A simpler method for making spiral growth in C4D.
The hint to this comes from Robert Leger who showed this technique for a different purpose (he made a leaf with the Extrude Object) in one of his tutorials, you should definitely check it out at: http://robertleger.net/blog/?p=530
There is a second file in the zip above, where I attached a light at the tip of the spiral, if needed.