There is a script that will do this on the AW website, I think - it gives you some added attributes so you can adjust the radii and other things, too.
You can make one easily enough - just take a sphere and break it up into eight pieces - four 90 degree crescents split in half at the equator. Separate these pieces and loft the edge isoparms together.
Use the "modify - add attribute" command to add attributes to the cube that you can hook the various scale features you want - this will give you sliders to control several at once.
Finally, cut the entire section out of the script editor and paste it into a text editor. Get rid of all the extraneous lines, like "result ... sphere1" and other messages, then save the script onto the shelf.