Blender - Blender is the open source, cross platform suite of tools for 3D creation.
3DTin - 3DTin is a browser based 3D modelling tool.
Sculptris - Sculptris: Enter a world of digital art without barriers.
Sunny 3D - With ultimate simple user interface, you can create 3D model by using freehand sketch and directly...
ShapeShop - ShapeShop is an advanced and professional 3D design and modeling application that comes with an easy-to-use and user-friendly interface.
Pmx Editor - PMX Editor is for editing 3D model data to be used in MikuMiku Dance.