I hope all of you are enjoying the holidays. I often read about the durability and long life of a cob pipe. Also some of you say that they naturally darken or change color with use. I have 5 cobs and love them, but they are too new to have seen any aging yet. I'd like to request photos of your (aging) cobs if possible. I am eager to see what we newby's will hopefully experience one day. Thanks!