so from tebob's and hborre's answer I understand that there is nothing out of the box,
but I understand that this could be achieved with morph targets.

Is it correct that I would have to create a morph target for each and every figure, and that if I want it to be realistic (i.e. doublechin), then it requires high modelling skills ?

Is it possible to pay somebody to do that ?

@chipsyann - okay, yes, that's what I would like to do, but how ?
Can you give me a hint, if can be done otherwise than with morph targets ?