I actually had a student come in to the office and say "It's true, you are sitting on a ball" His girlfriend had told him and he wanted to verify. Proof that it's a good conversation starter at the very least.
Also, I wanted to share the bag-o-the-moment. It's a simple tote from Old Navy and I HAD to have it. Not only for its message of sustainability, but because Green is my favorite color. For obvious reasons, of course.