Molds for concrete planters and vases

Upload a hollow vessel and get a printable housing for pouring a silicone mold around it: the vessel prints fused to the base, two wall halves (rectangular or round) lock around it with clips, and a core hanging from a spoked yoke on top forms the hollow of your casting. Set the silicone wall, margin, fit tolerance and core size, and see a silicone estimate before you pour. Runs in the browser, no CAD.

Try it: https://3dgenapp.com/generators/vase-mold