For SS bottles in the fire, use a set of wire fish mouth spreaders. They are cheap and can store in the bottle when not in use by simply squeezing them.
When open you can insert into the bottle, simply use them as bail and hang the bottle above the fire or as a handle. I can't take credit for the idea, some viewer suggested it to Dave Canterbury and he liked the idea too so he added it to his repertoire.

And of course, everything in your kit should be multipurpose so you can use them as initially intended to spread a fish mouth to retrieve hooks.