| We did one of these when I worked in a steak house! Some of us were unhealthily skinny while more of us were overweight. The manager was able to get some cool prizes from the beer reps and most of the restaurants in our district (West End Dallas, if you're familiar with it) joined in as well! It's common knowlege that servers are notorious for eating unhealthy. We weighed in every week and the person who lost/gained the most weight won. Unfortunately this was only a temporary solution to the problem!
We made it an ongoing thing that you could choose to renew every month! That way you began to practice healthy choices instead losing the most weight the fastest! The prizes were different every week, so it was ok if you lost one week and won another! | 
