Bottle Transfer Couplers

Are you thrifty? Do you hate wasting that last little bit of soap or shampoo in the bottom of a bottle? Are you looking for a simple and straightforward way to upend the old bottle over the new one without making a serious mess? Are your arms tired from standing around in your very comfortable but slightly threadbare bathrobe holding two bottles together for 15 minutes while the dregs of one drains into the other?

*Oh boy, have I got something for you!* As do about thirty other clever modelers who got as frustrated as I did and designed something to make their life minimally meaningfully easier, and shared it on Thingiverse. So, there's that.

After looking around I didn't find precisely what I was looking for off the Thingiverse shelf, so I sat down and quickly knocked something out from scratch. As seems to be a theme with my other models, this is the "Goldilocks" version of what I wanted, but couldn't find in one place elsewhere.

**KISS: K**eep **I**t **S**imple, **S**tupid: