Right. I didn’t like attention while at work either, so I went out and bought some wedding rings. That all stopped right away.
I've known several women who use this method of staving off creeps. Whether at work, or on a "girls night out."
If a man will talk with you about [whatever regular subject] while not trying to ask you out, you will get to know them. Then, if the friendship could be more, you can tell them why you are wearing that ring. The guys who are not understanding about your reasons, would not be anyone you would want to date anyway.