I was flying home with a snow globe souvenir one day. TSA had to huddle with their team and a calculator to figure out the volume of a sphere on the spot. I don't know if the volume ended up being under the limit or they just gave up.
The bottle is fine, the water is the issue, I've carried my metal water bottle just fine, but the plastic water bottle they gave me on the plane I had to toss when I got off through customs