Feel the burn or else you’ll feel the burn! The Cliff Hanger Mug from the Play Coalition makes you really work out those fingertips to hold the mug. Like a rock climbing wall on your coffee cup. Look at this guy:
Yeah baby. Add a little thrill seeking to your daily grind. Don’t drop the mug!
Funny Mug - I'm Not Always A Bitch, Just Kidding - 11 OZ Coffee Mugs - Funny Inspirational and sarcasm - By A Mug To Keep TM
Rock Climbing: The Ultimate Beginner's Guide for Indoor Rock Climbing And What You Need to Know (Rock Climbing Books, Book, Anchors, Training, Techniques)