Your idea would be cool, but what I'm not figuring out seems more basic.
If I create a callout ballon, I can't figure out a way to put text inside it, unless I create a separate text box, then turn the border off so it looks like it's not there. So, I have to create two objects, when it seems like I should only have to create the callout box, balloon, or bubble, then put the text within it. Does that make sense? (Thanks for the reply - I hope you're feeling better!)