For you Mac 2011 users out there…
What do you do if you accidentally delete the “Create Labels” button and cannot start the Labelmaker?
Don’t despair! Here is how to fix that:
From the Word menu, click on “View” then “Toolbars”. You will see several entries that may or may not have checkmarks next to them. One of these entries is “LabelMaker”. Click on this and the “Create Labels” button will return.

Thanks to Dr. William J. Turner for bringing this to my attention.