Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Xmind - Xmind is a brainstorming and mind mapping application.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.