Vacuum sealer attachment for salad dressing bottle

My favorite salad dressing (Marzetti's, found near the produce section) comes in a glass bottle, so I end up with a lot of them. I also have a vacuum sealer for various uses. I thought it would be cool if I could vacuum seal things in my empty bottles, so I made this.

I printed the attachment upside down, with supports. 100% infill, because it needs to be airtight, or very close to it.

For the seal, I used Oomoo 30, a rubbery silicone mold compound. Other types of rubber with similar p