vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Freeplane - Freeplane is a powerful and free software for building mind maps.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Pencil Project - Single-user mockup / wireframing / diagramming tool
ZBrush - ZBrush is a digital sculpting and painting software solution.