How about a trio of cats named Squirrel, Rat, and Mouse? Did that once. A family member still has two of them. The third was rehomed to a different relative years ago.
I have a dog named Nero. He's actually a very sweet dog and not at all like the famous emperor. The name doesn't fit but another family member gave it to him in the one week they had him before passing him on to me.
I have a quail roo named Randy...because he is so randy I can't leave him with any other birds. He is too hard on them (and if with the boys, he turns them into prison wives and tears them up, too).
When I was small we had a dog named BUSTER. I believe my grandparents didn't like him very much. The name was not always said with great love. the dog was a bit of a brat, ROFL. He got rehomed OFF a farm...