How to model a dog tile using mesh deformation technique?

Hi,

I would like to model a dog tile par example using unity 3d. I use the example from here:
http://catlikecoding.com/unity/tutorials/mesh-deformation/

I could create a 3d shape as cube, sphere, cylinder using the described method form mesh deformation. I would like to create a little bit more complicated shape as a dog tile or a cone that moves its top part using the PC mouse click or the PC keyboard par example.
My question is related how to create the mesh of more complicated shapes and how to make them moving?

Thank you