Feel free to use it in your own designs if you need something like this. For flasks, piggy-banks or anything else. I used it myself for a base for a desklamp and it works great.(https://www.thingiverse.com/thing:3383610). See for other examples the Remixe-page of this thing or at the bottom of the page for two piggy-banks I remixed with this part.

The screw thread is rather coarse, but therefore easy printable and well scalable. The mitered top of the plug and opening ensure that it can be tightened securely.

Happy designing :)

3-Nov-2019) Added a STP-file of the thing

Two examples of piggy banks:
https://www.printables.com/model/272240-moai-piggy-bank-remix

https://www.printables.com/model/272210-squidwards-piggybank

Category: Containers