Need Help create Microscopic Fibers


I need to create an organic microscopic fiber like in the image.

I managed to create some sort of random polygons by the help of the Generate Topology command found in the Edit Poly Ribbon, but it is just edges on the surface of the rectangular mesh, that I can convert to tubes with the lattice modifier.

This is more organic and contains random iterations everywhere. Any help on creating such a mesh. I need this inside a square prismatic volume of about 5cm x 5cm x 0.2cm