Bottle Mold
thingiverse
Slightly redid the bottle and made a mold out of it Print at 100% infill, make sure to use a mold release of some kind, and a low temp glue gun. You can clamp them together however you like, I used a tiny vice because it was handy but rubber bands should work fine. 1 full squirt from the glue gun into each hole should do it. The .blend file is labeled WIP but that's just so I can find it easy, it works well printed as is.
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