To reward or not to reward is a tough dilemma. That's why I would just give him a certificate "A donation has been made in your name to the Human Fund". This wa

To reward or not to reward is a tough dilemma. That's why I would just give him a certificate "A donation has been made in your name to the Human Fund". This way, there is no jealousy from the coworkers. One's contributions are appreciated (or seem to be), and you save your money for things that matter.