Does anyone know if these are available, and if so, where? I broke one of mine when removing it. I am having the tray re-plated, and needed the glides removed for this. It seems that they are common to ashtrays from various brands/models/years. First photo is of the undamaged one I have left. The other three photos are of other ashtrays with similar/same "glides". They are either made of plastic or nylon, but I'm not sure if they are called "glides". I searched the internet using all the "key words" I could think of, but no luck. Can anyone help? Thanks.