Adapter to connect 2 SoftSoap (and similar) bottles.

thingiverse

I repurpose an old adapter to transfer remaining soap from a nearly empty 56 oz SoftSoap bottle to a new one, confident you can think of other uses for it as well. This print is surprisingly easy, requiring no supports or raft. I didn't come up with the original idea myself; instead, I scaled this design to fit my needs: https://www.thingiverse.com/thing:2849064