You might want to disable the shader generator for that particular object, then, using setShaderOff with an override value.
Besides a specular highlight (note that you can set the specular colour to a multiple of white like (10, 10, 10), this will give a stronger effect), the woman’s inverted fishbowl seems to glow around the edges. There are easy ways to fake that sort of effect. One way could be:
[Fake rim-lighting effect help)
Of course, you’ll need to disable the shader generator in that case too.
It might be just as easy to write your own shader for it, though. It’s not difficult, just some basic vector math. And you can use Cg’s “lit” function for the specular highlight. You could even add a more advanced refraction effect this way.