The ColorPicker plug-in for Rhinoceros for Windows allow you to use an alternative color picker in Rhino.

Voronoize Any Brep or Mesh.

Draw a box anywhere and clip you model view around it

Zebra is a live multi agent behavior system(also known as Flocking or Swarming). Used to achieve design goals using agents.

Carverino (or CarveRhino) is an adaptation of the Carve CSG library and CarveSharp, a dotNET port of the same.

Fractals is an Open Source plugin for Grasshopper that allows users to create various types of mathematically generated fractals.

PRKNG_sqr[Parking Square] is a real-time parking layout calculator on any given site boundaries.

Master curvature grade surfacing without plug-ins with this fully illustrated step by step guide to model a Porsche 911.