This is a flower vase for fake flowers. I made this to hang on a plank. The thick ness of the plank is 3.5 cm this can fit that and can fit on plank as thick as 3.8 cm and anything thinner too but will be lose.

This is three-part object you can fit it together and then use tape or glue to join it.

This is not designed for vase mode if you want you can edit this to work with vase mode. If you do, please upload that. I have uploaded the fusion 360 design file if you want to use that.

You might want to have supports. I tried to minimize it but still you might want some. I adjusted the support X/Y distance 2.0 mm, so the flower design does not get supports.

I would recommend you download the pot with higher tolerance and use brim while printing, when I tried to print all parts together the pot got unstuck and I to print it alone again, also I had to sand all the contact points to make it fit. So I added 0.5 mm tolerance in the other part