"it's a newbie forum,what's the laugh for?"

My sincere apologies

I would start with a nurbs sphere and do an endsweep of like 270 degrees and rotate the sphere to an angle of your choosing, then convert to polygons because it's easier to edit geometry in poly mode, duplicate it and scal it down and then reverse the normal direction on the duplicated sphere(it's under normals in de polygons menu set)
what i usually do is use the append to polygon tool to connect the edges to one another.
rememver to press Y after each edge you connect otherwise it will keep going continuosly