This is the Christmas Tree stand that I have been using for at least 2 decades:
The spike is held into the base with a rubber grommet like this one:
The spike can be wiggled and twisted and moved all around. I typically put the tree on the spike while it is lying down and then lift it by the tree until it's vertical. This puts significant sideways pressure on the spike and grommet.
In the >20 years I've had the stand it has never leaked a single drop of water. I know that there is no pressure other than gravity, but it still amazes me that the grommet seals so well, completely submerged in water for weeks at a time. It has to seal around the spike as well as the plastic basin, which is simply held inside the grommet's slot.
Of course, I still put a plastic sheet under the stand, and I check the bottom of the basin when I add water, but so far (>20 years!) I have not had a single problem with the stand.
Faucets and other fixtures, with all their fancy connections, develop leaks on occasion. Maybe they should all just use a simple rubber grommet. ;-)
Merry Christmas and Happy New Year to all!