Haven't had an appreciation service. I wouldn't object the idea of having one. I am just thankful for being planted in a place where I don't have to the see my appreciation through a check (although that would look very good too
).
I have a pretty good relationship with my Pastor he's like an older brother and he makes sure every leader in the house knows their work is appreciated.
However, if I were having an appreciation. It would be simple just sit back and let me enjoy service and the preached word (no directing or playing or singing for me). Just being apart of the worship experience.