Here's one way to use 70+ feet of paracord for a 2 liter bottle carrier. I occasionally reuse the soda/coke/cola bottles as water bottles.
Five separate sections(about 12 ft of cord each, made like a paracord bracelet without a buckle to about a 12 inch length).
Then center looped onto a small split ring at the bottom of the bottle, knotted each of the five paracord parts to the same length, ran a short length of paracord(1 ft piece at the top secured with a Black Crater Cord Lock Light) to secure the five parts at the top.
Then ran another long length of paracord(14 ft), starting at the bottom by tying a knot at one end and zigzagging up then down from one section to the next, and just looped the cord I had left around the top a few times.
I just used what I had for the zigzagging cord, but you could end up using a lot more if desired for that part by running the cord closer together as it's worked up, then down each section and maybe crossing the lines up going around again....
It was kind of hard to see the cord with the water in the bottle, so I added another photo.
A separate paracord strap or handle could be added, or carabiners might be used to clip the bottle to a bag/pack.