I save up the nicotine puch containers for later use, but due to the top compartment in the cap, not much can fit into them. With this, you can make a bigger container from 2, while saving on filament.
This design is compatible with at least Killa nicotine pouches in Europe, but maybe the same container design is used everywhere.
One side fits less snug, therefore it always opens on that side. It is advised to somehow mark the top side.

Print instructions:

1. Support is not needed, but use brim, because the contact area with the build plate is really small.
2. Make the seam randomized to ensure proper fit.
3. As mentioned, one side is less snug and I always print with that side being on the top.