go online to see some toy stores. maybe the discovery channel too, they have stores.

Go to picture and paragraph starting “Tibetan hand carved …..” at

Elephant manikins?

They look like crap too.

Maybe you should think about making a wire frame and blocking out the solid parts with modelling clay or newspaper paper mache (air drying), then you only need plasticine where the joints bend so you can model them back in easily when you move it.

This link shows how to make a dinosaur out of wire, foam rubber and some pourable latex
I see no reason an elephant could not be made instead..