This is a customizable twisty icicle ornament. Print the icicle in vase mode, with a good-sized brim, print the hanger in a normal print mode, and glue them together (e.g., a drop of superglue).
The "strength" parameters control how far Bezier control points are from the displayed notes. Play with the parameters to see what happens when you change them.
This uses (and bundles) my Bezier and tube mesh libraries.