Handle broke on my kid's water bottle. I modeled this replacement. It took a little cleanup work afterwards to get the posts to fit in the holes on the lid. I used some sandpaper to refine the posts.
I may refine it later to make it fit better.
This is the water bottle this handle fits on: https://thermos.com/collections/funtainer/products/16oz-funtainer-r-water-bottle-with-locking-lid
The author marked this model as their own original creation.