No joke: My dog's name was "Guess". His sister's name was "Who". At the same time, we had a cat named "What do you think?"
Common scenario:
Newcomer: What's your dog's name?
Me: Guess
Newcomer: I've no idea.... Captain?
Me: Nope
Newcomer: Rover?
Me: No, Guess!
Newcomer: Heck I don't know... what's the other one's name?
Me: Who?
Newcomer: *sighs* What's the cat's name?
Me: (well, you get the idea)
....aaaand so on. It was fun stuff!
Meanwhile, different type of tool, but what if you called him Jack - short for Jackhammer?
Grinder?
Lincoln?
Decker?
Swamper? (my cow's name)
Bogger? (other cow's name)
Wrangler?
Okay, so those aren't tools specifically, but they're cool
Pickle.... that'll have anyone wondering how he's named after a tool