Flux Tubes as Tubes of Sphere Magnets: a Thought Experiment

If flux tubes were like tubes made of little sphere magnets, here's a thought experiment. I don't mean literal metal ferromagnets, just pure torus shapes. Imagine a tube like image A, with a straw down the middle, and you are blowing a little sphere magnet through the center of the straw. It's in the straw to prevent it from sticking inside the tube. Do this on the international space station with no gravity, and I think the sphere will automatically attach to the end of the existing tube, once it exits the end of the straw. Self-assembly of flux tubes is a property they must have, IMO.

Symbolism also seems to show them inflating to a certain size and then the contents spew out the end. That's what I want to point out on image F and G. I marked green color where it seems like a flux tube ends, but then a new skinny flux tube begins and re-inflates, until they end in a big curled up exit vortex. What an interesting set of properties this kind of magnetic energy must have (in my hypothetical tube model).

To be equivalent to flux in a straw, that flux must be non-magnetic, non-interacting, until it exits the tube. Self-assembly, self-healing properties are nice for these tubes to have. Do they inflate, both the tube walls and inner contents, and is that supplied by internal flow, or flow to each torus independently, and what effect does external ambient pressure have? Would the tube walls and it's diameter shrink if it became surrounded by higher external pressure? Inflation, deflation, pressure. We have time, no rush to figure it out instantly, but I think it's neat to notice what's happening in these fancy bird and animal tails.