Something I've been working for  BrakkWani and myself I am slowly rigging them, which I hate with a passion, but I will hopefully finish it being 100% animatable. I may even upload the yellow one for free use.
Sorry for the Arnold water marks, Didn't activate the software when it was rendered, also issues with the eyes not rendering it's alpha for some reason.. I solved this buy doing a mental ray pass.
Will upload a better lit and posed picture for the final rig soon!