Using a coffee mug without a proper handle is like taking a walk on the wild side of caffeine consumption. It’s a little bit dangerous, but very exciting. Well, we have some good news for those who love to live dangerously: now there’s a rock climbers coffee mug that is literally made to look and feel like the edge of a rock. This way, it’ll help you practice your rock climbers grip every time you go for a sip of coffee.