The first image I came across was one of a mech (see the image below):
(the mech model I found from a copyright free website)
The reason why I won't be going with this for my experimenting is that the poly count on this model is dramatically high - too much detail in places where it's not needed, this cause the lab computers and my laptop to slow down using the software.
I looked on for another and found a another model, this one of a female character, and the poly count isn't so high it would not slow down the computer or the software too much. I hope to start experimenting with the software using this character soon, the software is running on my laptop which means that this should be happening sooner rather than later. The link to the original model can accessed via this link: http://animium.com/2012/09/cartoon-character-3d-model/