Here's one of my favorite bowls. I like the shape and size of the bowl. It's large enough to hold fruit or other substantial items.
Step 11: Blend to make concentric rings
Go to the Blend dock. Change the number of steps to 9 (8"-3"=5"; 5"/.5"=10; 10-1=9). This will create 9 steps shapes between the two selected shapes. Press Apply. Now move the sets of shapes to the upper left corner of your document, leaving only a little bit of space between them.