Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
ZBrush - ZBrush is a digital sculpting and painting software solution.
Webcamoid - Webcamoid is a full featured webcam capture application.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.