It's been a while since I've been in science class and I was wondering if this was theoretically possible. It's so specific because I'm writing a story using this scenario and now am wondering if it's completely unrealistic... What are your thoughts? Here's the question: Let's say you have a heavy duty toilet plunger. And let's say you feel like hurling it, like a baseball bat, into a large glass mirror. You're a strong person, so it's going to be a strong swing. And as I said, it's a heavy duty toilet plunger. Now would it break the glass or would the rubber of the plunger just absorb the impact?