Trying to develop something like this...

I am trying to generate something resembling a log jam. I have searched around grasshopper, but have not seen anything quite like it. I would like to be able to develop this with pipe or extruded geometry. I have considered using kangaroo to pack the geometries but am not quite sure how to do that (not even sure that's the best way, there might be a simpler/less computationally expensive method). I have also tried to simulate this in maya but to no avail. My maya skills are not as good as some. I have been trying to do this for several days now, but cannot seem to get anything that looks right. Any and all help is appreciated. Please help!!

I know this is not much to build from so more description from me may be needed. I think responding to your replies will be the best way to acheive this. Thanks again...

RFS