Alternatives to AutoDesk:
Free desktop programs (download necessary):
Parametric 3D Design
Polygonal 3D Sculpting
Free web-based programs (no download necessary):
Make Polygonal 3D Sculptures!
Make 3D and AR Designs!
Make VR Exhibitions!
Other online 3D tools:
Order & Print your 3D Creations!
Figure Poser
Pepakura Paper Folding (PC)
Unfolder for Mac