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.
MAXON Announces Partnership with Side Effects Software
MAXON has announced a partnership with Side Effects Software.
Jayden Paterson - Houdini FX Reel 2014
Jayden Peterson has posted a reel showcasing his Houdini FX work.