This is Meeper, based on Imagework's 2002 short film "The ChubbChubbs". The model was originally part of Alias's (now Autodesk) training book for Maya 7 - "Modelling and Animation handbook". This however was made entirely in Blender 2.63. The process itself - modelling, texturing, rigging and animation - took roughly 8-9 hours to complete.
The model is also available for download at BlendSwap:
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