Hi everyone,

i am a student and quite new to houdini. I am currently trying to achieve this fx 
https://www.youtube.com/watch?v=5WKU7gG_ApU#t=3m [www.youtube.com] 
and since it has to be driven by a particle system i have  started with partciles with trail of which i changed the shape but it looks more like a scientific visualization of feertilization than paint ahah! The paint would also have to end up forming a paint ball/blob by the gathering of all the paint streams. I have  a few questions:

- How can i randomize the shape and the behaviour of the trails to make it look more like the reference?

- How can i change only the sape of the first sphere copied onto the first particle of the trail without affectiing the shape of the trail?

- How could i integrate some indipendet/random bubbles of paint popping out of the main streams?

I attached hip if you want to take a look

Every other suggestion would be much appreciated

Many Thanks