Ifyou would like to place the functions on the Quick Parts drop down into your personal toolbar, correct? Like "Building Blocks Organizer?" and "Save Selection to Quick Parts Gallery?"

Go to Word Options > Customize > All Commands, and scroll down. They're all there. Just click Add to place them on your Quick Access toolbar.

I started to respond, thinking that was your question, then read more carefully. It sounds like you have something more specific in mind. If you want icons for specific tasks, you can just record a macro, and assign an icon to your toolbar. Have your macro filter the content you need. Unless I totally misunderstood. I read it again, and wasn't sure...?