Diego Inácio has created several geometry tools for Houdini, using Python.
Houdini Engine for Autodesk Maya
SideFX have released Houdini Engine for Maya, with 3ds Max and Unreal versions coming soon.
See the new features and improvements in Side Effects Software's fresh release of Houdini 12.5.
Houdini - Demo Reel 2011
Check out this demo reel showcasing some of the best work achieved with Side Effects Software's Houdini.