I am looking to add ropes to some of my most problematic inflatables. With other 500, purchasing replacement ropes from decorating websites is not feasible. Looking for something that can be bought in bulk and cut as needed. I’ve tried many different types of rope, but they are either too heavy, to difficult to tie, or not flexible enough. Do you have suggestions of what type or rope/cord (e.g. material, braid type, construction) makes the best tethers for the smaller inflatables (6’ or less)? Thanks for any guidance.