Small Python scripts created long time ago for Rhinoceros 6 used mostly in jewelry design
sticky_curve.py - script for creating curve, called sticky curve, which "sticks" to the selected surface, it remembers control points through which it was drawn, by using option for editing curve you may change the position of each point individualy, while curve remains "sticked" to surface
drill_a.py - script can be used in jewelery design to create drill bits for jems setting on selected surface with dynamically selected size, also script has an option for creating corners
bridge_on_surface_rectangular.py - script for creating bridge with rectangular shape between two pints on selected surface
...