I love the Julia Vases by @virtox, and I wanted to try my hand at making my own fractal vase. I used an easier fractal, because my Rhinoceros modeling skills aren't up to par yet. NOTE!!!: The file "Koch_Snowflake_Vase.stl" will show up in your slicer as a solid figure. Using slic3r, I took off the top horizontal layers and set it to 0 infill. This is the only way to make it (cleanly) into a vase. I have included the .3dm file in case you wish to add another step in the fractal process. Important slic3r settings: Infill: 0% Solid layers (top): 0