I don’t see anything wrong with profiting from the fact that some people wait until the last second to think of these things. That said, I doubt he’ll sell quite that many boxes.
There’s a Horrible Histories segment you can find on YouTube about real names from the Victorian age. Things like Minty Badger, Scarylooker, Farting, and Baboon. Weird names are nothing new!
I had one as well, she’d sniff at it and walk away.