My LAWL center (centers, I should say - I'm on my third location but all owned by the same franchisee) has before and after photos ALL over - in the reception area, the weigh in area, and in every office. (but not in the bathroom, lol!) Also in the WI area there is a whiteboard divided into Pounds Lost sections and every client has a magnet that gets stuck in the appropriate section. And finally, they have a cork board COVERED in different lengths and colors of curling ribbon - again one for each client, and the ribbon represents how many inches you've lost.
I wish mine had the bell.

I also wish mine had the just-WI option, but they only break that out at certain times of day when people tend to be in a hurry - rush hour and lunch hour, ya know.