What's cool to you might not be cool to the next person, so make sure you really have a good idea what is in, and what is out.
It's not very cool to get injured and need a cast, but if you have to have one, it's awesome to be able to print your actual X-ray on the outside! Now you don't have to keep answering inane questions about what happened. Just show them the break.
Take out your frustration on the walls and expand your storage possibilities!
I don't know if I could handle the constant suggestion to drink hot chocolate, but I would love to impress my coworkers with this.