Honeycomb generates planar tilings and topological interlockings. It enables the creation of patterns through symmetric transformations, each derived from the 17 wallpaper groups.
Farsi Nevis is a fast and powerful plugin which allows you to create Persian (Farsi and Arabic texts in Rhino without any external tools. You can also copy or convert the texts.
Sawfish, because it creates, based on complex triangulated shapes, solid beam and plate geometry with planar sides, which can be sawn using a saw as tool only.