Wow, interesting topic! Let me think about this one...
First thing that comes to mind is the red river hog, which I believe could be made from the same mold as the wild boar. The arctic fox could be made from the same mold as the red fox, and the thompson's gazelle mold seems that it could be used for a few other small antelope species, like perhaps a blackbuck, though the horn mold might need changing. Also, the body and leg molds of the ostrich could be used with different head molds to make an emu and a cassowary. And there are some other cat species, like the snow leopard, that could be made from existing molds.