123D Creature from Autodesk is an iPad app that allows you to create your very own 3D creatures. 123D Creature features an easy to use tool that makes creating characters as easy as drawling a stick figure. Once you've created your own creature, you will be able to export it as an image, a 3D model, share it with the 123D Creature community, or even print it with a 3D printer.
Features, from the App Store Description:
✓ Start by creating a skeleton – drag joints to create new limbs, or to adjust their position.
✓ Adjust the thickness of your creature’s skeleton by dragging the shaping rings.
✓ 123D Creature will keep your model symmetrical automatically.
✓ Once you’re done creating the basic skeletal structure of your creature bake it in the digital kiln before adding additional sculptural detail.
✓ In the sculpting room you can refine the surface shape using tools from the popular 123D Sculpt app.
✓ Use the airbrush to paint on color, or use Image Paint to rub areas of a photo from your image library onto your creature to add realistic details.
✓ Bring your creature into the Render room where you can adjust the lights, background, and filter effects to generate amazing scenes and images.