LibrePCB - LibrePCB is a free EDA software to develop printed circuit boards.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
XCircuit - XCircuit: Home Page
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
ZBrush - ZBrush is a digital sculpting and painting software solution.