Wave vase, great for decoration, flowers or can be used as key bowl.
Fits most common printers with 200mmx200mm bed size, you can always scale the model fit your own needs!

Printing setting suggestion:

Vase mode: Can be used
Infill: 80+% (Gyroid or honeycomb, not needed for vase mode
Walls: 1-4
Top/Bottom layer: 2-33
Material: Any, your choice.