My daughter has communion this sunday, so we hire a whole restaurant for launch.
As a little present, I designed a hotel keyring with their name on the one side and something in italian.
I hope I translated it correctly, otherwise the owner of the hotel won't be happy. It should mean something like "Key of the boss".
The design was quite simple, although it is nearly completely smooth. The black ring is a rubber isolation ring which was put over with force, until it clamped into the groove.
The parametric openscad file can be found on thingiverse - as usual.
Greetings from the lake of constance