While hitting a punching bag might help you relieve some stress, it could fast become boring if you don’t have one in the shape of your boss. While that’s not what we’ve found, but the punching bag dubbed Decathlon might actually keep you occupied when you’re pounding away. What the Decathlon does is it has a patented system of LED lights that illuminates as you hit the range. It comes with 10 training programs, allowing you to test your skill, speed, power and endurance while having some healthy fun. It’ll be interesting to see how long the Decathlon will last when you come back from a particularly stressful day at the office, though.