I made this vase for a funny "mother in law" Mother's Day gift :-)
It is hollow and (maybe) water tight.
If you have a problem with support will not stick to side of vase, and support fall off, try:
In cura it was Minimum support X/Y Distance
And "Support Distance priorty" set to "X/Y overrides Z"
it also have some support inside that is hard to get out.
i have also made it i two half's so you can lay it down and glue the two half together.
"the hand" is from:
Hand Gestures by Mike-vom-Mars
Happy Mother's Day :-)