Adding physics to this animation

[Narad13]

Hey all! I was just goofing off with an idea and created this animation (attached). But I was wondering how I could improve it by giving these "noodles" physical substance so that they won't pass through each other... I don't think cloth is an option due to the fact that the shape is changing constantly. I tried using particle physics with the shapes from which the splines are created and that didn't seem to work either.

Also, a related question: I wanted to export all of this as a tyCache but when I do I am losing the property that defines the scale of the shapes that I am using to make these varies thicknesses when applying tySplineMesher. Any ideas on how to maintain that property on export?

Thanks!