I held the release of this model for quite a lomg time becuase I wanted to add an armature (rig it) and material to it. Because of my diversion to other things and time limitation I couldn’t complete it. Nevertheless, below is the screenshot of this model I call – Toon Cow.

You can download this from http://www.savefile.com/files/1917654 or http://www.katorlegaz.com/index.php?a=download&c=Blender_3D_Model_Repository. (www.katorlegaz.com has a free Blender 3D Model Repository)

(UPDATE: Direct link to download ToonCow from katorlegaz.com is http://www.katorlegaz.com/downloads/Blender_3D_Model_Repository/characters/Toon-Cow.zip)

Blender is a powerfull, open source 3dModelling and animation software. For more information see this and this.